| phlebotomine sandfly species in paraguay and their infection with leishmania. | nine species of sandflies, lutzomyia (nyssomyia) whitmani (antunes and countinho), lutzomyia (nyssomyia) intermedia (lutz and neiva), lutzomyia (psathyromyia) shannoni (dyar), lutzomyia migonei (franca), lutzomyia (pintomyia) fischeri (pinto), lutzomyia (pintomyia) pessoai (countinho and barretto), lutzomyia cortelezzii (brethes), lutzomyia walkeri (newstead) and lutzomyia (trichopygomyia) longispinus (mangabeira), were caught, by human bait and shannon trap, in four areas of paraguay hyper-ende ... | 1992 | 1417209 |
| cutaneous leishmaniasis of man due to leishmania (viannia) shawi lainson, de souza, póvoa, ishikawa & silveira, in pará state, brazil. | leishmania (viannia) shawi lainson, braga, de souza, póvoa, ishikawa & silveira, 1989, was originally recorded from monkeys (cebus apella and chiropotes satanas), sloths (choloepus didactylus and bradypus tridactylus) and coatis (nasua nasua) and the sandfly, lutzomyia whitmani. with a panel of leishmania specific monoclonal antibodies, it was found that 30.5% of the leishmania strains from patients, who had contracted cutaneous leishmaniasis in pará state, were similar, but not identical to l. ... | 1991 | 1822654 |
| phlebotomine sandfly (diptera: psychodidae) fauna survey in an american cutaneous leishmaniasis (acl) focus in baturité, ceará state, northeast brazil. | from october until july 1991, cdc miniature light traps were set up and man and animal-landing and biting catches were made in 100 different catching zones, in different habitats, throughout the acl focus of the serra de baturité. female lutzomyia whitmani and lu. wellcomei appeared to be highly anthropophilic and were the most prevalent species in man-landing catches in peridomestic sites. most lu. migonei were attracted to animals, especially mules. seasonal fluctuations and habitat preference ... | 1991 | 1841202 |
| natural infection of lutzomyia (nyssomyia) whitmani (antunes & coutinho, 1939) by leishmania of the braziliensis complex in baturité, ceará state, northeast brazil. | | 1990 | 2087162 |
| leishmania (viannia) shawi sp. n., a parasite of monkeys, sloths and procyonids in amazonian brazil. | leishmania (viannia) shawi sp. n., is described from the monkeys cebus apella and chiropotes satanus, the sloths choloepus didactylus and bradypus tridactylus, the procyonid nasua nasua, and the phlebotomine sandfly lutzomyia whitmani, all from primary forest in the state of pará, north brazil. l. (v.) shawi is variably distinguished from all other known species within the subgenus viannia by a combination of biological, biochemical and serological characters, as revealed by studies on morpholog ... | 1989 | 2504099 |
| [ecologic aspects of american tegumentary leishmaniasis. 6. anthropophillic phlebotomus fauna of residual forests located in the northeastern region of the state of são paulo, brazil]. | this report shows the phlebotomine vectorial role in the endemic cutaneous leishmaniasis situated in the middle and north-eastern region of the são paulo, brazil. analysis of information encloses a sandfly man-biting fauna of four different patches of residual forest. so, using the human-bait and shannon trap for a period of one year we have caught 16,869 sandflies. the predominance of lutzomyia intermedia (85.6%) was clear. moreover, the low density of lutzomyia whitmani and lutzomyia pessoai a ... | 1989 | 2814202 |
| [epidemiological characteristics of american cutaneous leishmaniasis in an endemic region of the state of bahia. iii. phlebotomine fauna]. | the phlebotomine fauna is highly varied in três braços, an endemic area of american cutaneous leishmaniasis, situated in the cacao growing region in the southeast of bahia state, brazil. thirty spécies of the lutzomyia genus were identified in 13,535 specimens collected between 1976 and 1984. lutzomyia whitmani was the dominant species accounting for 99% of flies in the peridomicile and 97.5% of those caught in homes. in the forest the predominant species were lu. ayrozai and lu. yuilli. lu. whi ... | 1986 | 3574127 |
| [experimental infection of lutzomyia whitmani in dogs infected with leishmania braziliensis braziliensis]. | lutzomyia (n.) whitmani was infected on leishmaniotic lesions of three out of nine dogs infected with leishmania braziliensis braziliensis. the infectivity rates in these sandflies were 8.3% (1/12), 7.1% (1/14) and 1.8% (3/160), respectively. in addition, 180 lu. whitmani fed on non-ulcerated regions of one of the infected dogs and none became infected. we emphasize the vector potentiality of lu. whitmani for l.b. braziliensis in the endemic region of três braços, bahia, brazil. | 1986 | 3796276 |
| american cutaneous leishmaniasis in pernambuco, brazil: eco-epidemiological aspects in 'zona da mata' region. | american cutaneous leishmaniasis (acl) has been increasing in pernambuco, thus becoming an important problem for public health. the incindence is predominant in the region called 'zona da mata', in the east of this state. this region corresponds geographically to the primitive area of the atlantic forest. in order to characterize the eco-epidemiology expression of acl in this region, two localities situated in the municipalities of amaraji e cortes have been selected by the criterion of higher i ... | 1994 | 7476230 |
| sand fly vectorial ecology in the state of são paulo. | ecological aspect of sand fly distribution in the state of são paulo, brazil are described. the main man-biting species are lutzomyia whitmani, lu.pessoai, lu.intermedia, lu.migonei and lu.fischeri. their primary habitat is the forest but latter three of the above species are also encountered in domiciliary environment. sylvatic species such as lu.flaviscutellata bite man only rarely and psychodopygus ayrozai seems to be more anthropophilic. the survival of sand flies in the residual forest and ... | 1994 | 7476232 |
| cutaneous leishmaniasis in ceara state in northeastern brazil: incrimination of lutzomyia whitmani (diptera: psychodidae) as a vector of leishmania braziliensis in baturite municipality. | baturite is an important endemic zone of american cutaneous leishmaniasis in the state of ceara, where an entomologic survey has been carried out to obtain information about transmission of the disease. from october 1989 through august 1991, natural infections with flagellates were detected in 34 of 3,000 lutzomyia whitmani, five of 1,667 lu. migonei, three of 5,278 lu. wellcomei, one of 646 lu. shannoni, and one of 21 lu. evandroi. thirty-five infections were peripylarian (i.e., behind the pylo ... | 1994 | 8024061 |
| the identity of leishmania isolated from sand flies and vertebrate hosts in a major focus of cutaneous leishmaniasis in baturite, northeastern brazil. | during a field investigation carried out in baturite, brazil from 1989 to 1991, sand flies, sympatric rodents, domestic dogs and humans were surveyed for leishmaniasis. twenty strains of leishmania were isolated by in vitro culture from lutzomyia whitmani, three strains were obtained from rattus rattus, two strains from dogs, and five strains from humans. the isolates were characterized by isoenzyme electrophoresis by hybridization with kinetoplast dna-specific probes. all the samples were ident ... | 1994 | 8116807 |
| epidemiological aspects of american cutaneous leishmaniasis in a periurban area of the metropolitan region of belo horizonte, minas gerais, brazil. | in order to characterize the epidemiology of american cutaneous leishmaniasis (acl) in a periurban area of the municipality of sabará in the metropolitan region of belo horizonte (mrbh), an area until then considered free of the disease, a cross sectional survey was undertaken in 1990. the survey of the population consisted of 1119 interviews and 881 clinical examinations using montenegro's skin test (mst). a low prevalence (3.7%) of positive mst was encountered. the disease had been occurring i ... | 1993 | 8246744 |
| [preliminary results of a project about the ecology of phlebotomus vectors of cutaneous leishmaniasis in the state of bahia]. | preliminary data of a project about the ecology of the phlebotominae (sandflies) in a tegumentary leishmaniasis area of coconut plantation in the south of the state of bahia, brazil are presented. there are 60 dwellings far of one another, where existed 31 dogs and 229 inhabitants. among them 41.5% were montenegro positive; 37.5% from these had scars of healed ulcers and 8.8% had active ulcers. 53% of the house had dogs from which 22% were seropositive; from the 7 dogs with ulcers only 3 were se ... | 1996 | 8713612 |
| variation between geographical populations of lutzomyia (nyssomyia) whitmani (antunes & coutinho, 1939) sensu lato (diptera:psychodidae:phlebotominae) in brazil. | phylogenetic analysis of morphometric and biological characters indicated that there are two distinct forms of lutzomyia whitmani in brazil: one is present both north and south of the river amazonas in the state of pará while the other occurs in northeast brazil, in the state of ceará, and further south, including the type locality in state of bahia. the amazonian form is reportedly neither strongly anthropophilic nor synanthropic, and it is the vector of leishmania shawi; whereas the southern f ... | 1996 | 8734947 |
| the sand fly fauna (diptera: psychodidae: phlebotominae) of a focus of cutaneous leishmaniasis in ilhéus, state of bahia, brazil. | the municipality of ilhéus, state of bahia, has a focus of cutaneous leishmaniasis where entomological studies were carried out to determine the sand fly species and their habits. lutzomyia migonei, l. sallesi, l. tupynambai, l. schreiberi, l. intermedia, l. whitmani, l. yuilli yuilli, l. fischeri, l. pessoai, l. shannoni and l. misionensis were identified. lutzomyia whitmani was the predominant species. specimens were collected indoors, at peridomestic sites, in the cocoa plantations and in oth ... | 1996 | 8734952 |
| phylogenetic species and domesticity of lutzomyia whitmani at the southeast boundary of amazonian brazil. | | 1998 | 9764319 |
| [phlebotomines collected in remaining forests and wild animal shelters from the zoological garden of the maringa urban area, southern brazil. preliminary study]. | the present study was undertaken after the detection of one case of cutaneous leishmaniasis with presumed infection in one of the three remaining wooded areas in the urban area of the city of maringá, southern brazil; also in view of the lack of knowledge about sand flies and their behavior. from june to september, 1995, sand flies were caught with falcão traps during the night in the remaining wooded areas (parque do ingá, bosque dois and horto florestal). a total of 2,907 sand flies were caugh ... | 1998 | 9859694 |
| [phlebotomus (diptera, phlebotominae) from saint luis island, maranhão gulf region, brazil]. | this study lists 32 species of sand flies, 1 of them belonging to the genus brumptomyia and 31 to the genus lutzomyia, distributed among the following subgenera: psychodopygus (6), nyssomyia (5), pressatia (3), evandromyia (2), psathyromyia (2), sciopemyia (2), lutzomyia (1), micropygomyia (1), viannamyia (1), and the groups oswaldoi (5) and migonei (3). the sand flies were captured in the wild (forest) and in peridomicile (pigpen, hen house and stable) and intradomicile (bedroom) areas from 06: ... | 1999 | 10380563 |
| a mitochondrial dna phylogeny indicates close relationships between populations of lutzomyia whitmani (diptera: psychodidae, phlebotominae) from the rain-forest regions of amazônia and northeast brazil. | phylogenetic analysis of all 31 described mitochondrial (cytochrome b) haplotypes of lutzomyia whitmani demonstrated that new material from the state of rondônia, in southwest amazônia, forms a clade within a lineage found only in the rain-forest regions of brazil. this rain-forest lineage also contains two other clades of haplotypes, one from eastern amazônia and one from the atlantic forest zone of northeast brazil (including the type locality of the species in ilhéus, state of bahia). these f ... | 1999 | 10419383 |
| host and/or site loyalty of lutzomyia whitmani (diptera: psychodidae) in brazil. | | 1999 | 10484168 |
| [sandflies (diptera, psychodidae) from an endemic leishmaniasis area in the cerrado region of the state of maranhão, brazil]. | this article presents a list of ten sandfly species from the genus lutzomyia frança, 1924 found in the counties of aldeias altas, capinzal do norte, caxias, codó, coelho neto, timbiras, timon and tuntum in northeastern maranhão, brazil. presence of sandflies was associated with cases of visceral and cutaneous leishmaniasis. some 377 specimens were captured indoors with cdc light traps and 1491 specimens in the peridomicile. the species were: lutzomyia cortelezii, lutzomyia evandroi, lutzomyia go ... | 1999 | 10502159 |
| experimental comparison of anthropophily between geographically dispersed populations of lutzomyia whitmani (diptera: psychodidae). | lutzomyia whitmani, a major vector of cutaneous leishmaniasis in brazil, occupies diverse habitats from the amazon forest canopy to suburban animal pens. three mitochondrial lineages of lu. whitmani ('amazonian', 'north-south' and 'north-east') have parapatric distributions coinciding with different ecological zones. we assessed the host preferences of populations representing the three lineages in standardized field experiments, and found that lu. whitmani in all sites were significantly more a ... | 1999 | 10514057 |
| morphometric and phenetic studies of five geographical populations of lutzomyia whitmani (diptera: psychodidae) in brazil. | a morphometric survey examined adult specimens of lutzomyia whitmani (antunes & coutinho) captured at 5 municipalities in southeastern and northeastern brazil to compare the populations. the localities were ilhéus (bahia), martinho campos (minas gerais), corte de pedra (bahia), baturité (ceará), and amaraji (pernambuco): all are known foci of american cutaneous leishmaniasis. fifteen males and 15 females from each population were analyzed morphometrically for 42 and 37 characters, respectively. ... | 1999 | 10593089 |
| [impact of environmental changes on sand fly ecology in southern brazil]. | tree felling around a chicken coop and periodic insecticide spraying at the palmital farm in the county of terra boa in southern brazil impacted the ecology of sand fly species. the most prevalent species (51.6%) before clearing the trees and insecticide spraying was lutzomyia migonei (frança, 1920), and it is now lutzomyia (nyssomyia) whitmani (antunes & coutinho, 1939) (89.8%). there was a highly significant difference between the proportions of l. whitmani reported by this paper (89.8%) and a ... | 1999 | 10633213 |
| epidemiological surveys confirm an increasing burden of cutaneous leishmaniasis in north-east brazil. | health service records for north-east brazil suggest a consistent rise in numbers of cases of cutaneous leishmaniasis due to leishmania (viannia) braziliensis over the past decade. in a study site in pernambuco, prospective, cross-sectional and retrospective epidemiological surveys of infection (a positive montenegro skin test response) and/or clinical symptoms confirmed a high current force of infection (0.092/year), and an approximately 10-fold increase in transmission during the last 10 years ... | 1999 | 10696402 |
| [sandflies (diptera, psychodidae) in a secondary forest area in the paco do lumiar city, maranhao, brazil: a leishmaniasis transmission area]. | this paper analyzes the wealth of species, relative abundance, seasonal fluctuation, and nocturnal activity of sandflies. the field survey was conducted in a "capoeira" (secondary forest) area in the county of paço do lumiar, maranhão, where cutaneous and transmission of visceral leishmaniasis frequently occurs. sandflies were captured by cdc-type light traps from 6:00 pm to 6:00 am, once a month, from march 1997 to february 1998. a total of 489 specimens were collected (251 males and 238 female ... | 2000 | 10738174 |
| [phlebotominae (diptera: psychodidae) of lagoas, a city of buriticupu, amazonia of maranhão. i. the richness and relative abundance of the species in an area of recent colonization]. | in this study the diversity of the species and relative abundance of the sand flies in the amazonian community of lagoas, in buriticupu, maranhão state, was determined. the study consisted of adult sandflies captured with cd light-traps, shannon-trap and manual aspiration tube, between 18 pm and 6 am, once a month, from december/95 to january/97, in a forest fragment and in the domestic environment (peri and intra). in all, 9,393 specimens were captured (4,302 males and 5,140 females) distribute ... | 2000 | 10881113 |
| domesticity of lutzomyia whitmani (diptera: psychodidae) populations: field experiments indicate behavioural differences. | the sandfly lutzomyia whitmani (antunes & coutinho) is an important vector for cutaneous leishmaniasis throughout much of brazil, and has recently been shown to consist of more than one mitochondrial lineage. it has frequently been asserted that the degree of adaptation of l. whitmani to human environments varies across its range. as a standardized test of indoor feeding for three geographically distant populations of l. whitmani, catches inside experimental chicken sheds of varying degrees of w ... | 2000 | 10948362 |
| lutzomyia whitmani (diptera: psychodidae) as vector of leishmania (v.) braziliensis in paraná state, southern brazil. | the phlebotomine sandflies in the northern areas of the state of paraná, brazil, particularly those in the '16a' health region, were investigated over a 3-year period. using cdc light traps (with and without hamster bait) and shannon traps (with lights and horse or human bait), 16 species were collected from seven municipal districts which were known foci for cutaneous leishmaniasis: arapongas; apucarana; cambira; marumbi; faxinal; florestópolis; and sabáudia. although the frequency at which eac ... | 2000 | 11064764 |
| wolbachia infections of phlebotomine sand flies (diptera: psychodidae). | old and new world phlebotomine sand fly species were screened for infection with wolbachia, intracellular bacterial endosymbionts found in many arthropods and filarial nematodes. of 53 samples representing 15 species, nine samples offour species were found positive for wolbachia by polymerase chain reaction amplification using primers for the wolbachia surface protein (wsp) gene. five of the wsp gene fragments from four species were cloned, sequenced, and used for phylogenetic analysis. these ws ... | 2001 | 11296829 |
| effect of lutzomyia whitmani (diptera: psychodidae) salivary gland lysates on leishmania (viannia) braziliensis infection in balb/c mice. | previous reports showed that lutzomyia longipalpis saliva exacerbate leishmania braziliensis infection in mice. the sand fly lu. whitmani is one of the vectors of l. (viannia) braziliensis (lvb), a causative agent of cutaneous leishmaniasis in the state of ceará, brazil. to determine whether saliva of lu. whitmani could increase the infectivity of lvb in mice, we inoculated groups of balb/c mice with lvb promastigotes in the presence or absence of the salivary glands lysate from lu. whitmani. we ... | 2001 | 11313642 |
| [phlebotomine sand flies in the state of tocantins, brazil (diptera: psychodidae)]. | between 1997-1998, the authors carried out sporadic collection of sand flies in the municipalities of paraíso de tocantins, monte do carmo, porto nacional and monte santo all in the tocantins state of northern brazil. human bait was used in monte santo and a battery operated light trap in other municipalities. the ecotypes chosen for the traps were in the peridomiciles, inside the houses, in the forest and the orchard. we identified 2,677 sand flies, belonging to 32 species. the most abundant sp ... | 2001 | 11562724 |
| phlebotomine sand flies in the state of piauí, brazil (diptera: psychodidae: phlebotominae). | in 1997, 1998 and 1999 we performed several captures in the state of piauí, in the counties of barro duro, campo maior, castelo, floriano, picos, são raimundo nonato and teresina. we used cdc light traps inside houses, in a primary forest and in one cave. seventeen species were collected being lutzomyia longipalpis, lutzomyia samueli, lutzomyia whitmani and lutzomyia lenti the most captured species. the genus brumptomyia, l. whitmani, lutzomyia sordellii, lutzomyia carmelinoi, lutzomyia termitop ... | 2001 | 11784927 |
| genetic variation in populations of leishmania species in brazil. | the population structure of strains of leishmania (viannia) braziliensis sensu lato from pará state and paraná state in brazil, of l. (v.) shawi and l. (leishmania) amazonensis from pará state, and the relationships of type strains of the subgenera l. (viannia) and l. (leishmania) were examined by the random-amplified polymorphic deoxyribonucleic acid (rapd) technique. four different primers (m13-40, qg1, l15996 and delta gt11r) were used. the bands were analysed using the neighbor-joining (nj) ... | 2002 | 12055823 |
| ecology of sand flies (diptera: psychodidae: phlebotominae) in the north of the state of mato grosso, brazil. | peixoto de azevedo is located in the north of state of mato grosso, where environmental alterations led to an outbreak of american cutaneous leishmaniasis in the 80s. the parasite from patients was characterized as leishmania (v.) braziliensis. the aim of this study is to contribute to the sand fly ecology of central-west brazil. captures were carried out monthly using cdc light traps. twenty-six species of sand fly were characterized; among which lutzomyia (lutzomyia) spathotrichia, l. runoides ... | 2002 | 12118273 |
| transmission of leishmania in coffee plantations of minas gerais, brazil. | transmission of leishmania was studied in 27 coffee plantations in the brazilian state of minas gerais. eighteen females and six males (11.6% of the people tested), aged between 7-65 gave a positive response to the montenegro skin test. awareness of sand flies based on the ability of respondents to identify the insects using up to seven predetermined characteristics was significantly greater among inhabitants of houses occupied by at least one mn+ve individual. five species of phlebotomine sand ... | 2002 | 12219123 |
| seasonality of lutzomyia intermedia and lutzomyia whitmani (diptera: psychodidae: phlebotominae), occurring sympatrically in area of cutaneous leishmaniasis in the state of rio de janeiro, brazil. | lutzomyia intermedia and lutzomyia whitmani occur sympatrically in the district of posse, municipality of petrópolis, in the state of rio de janeiro (114 km from the city of rio de janeiro), where sand flies were captured weekly for three consecutive years in both the peridomicile and forest, in two first years from 18:00 to 22:00 h, using a shannon trap and cdc light traps. the anthropophilic habit was assessed by recording the specimens that bit the human captors. considering the different cap ... | 2002 | 12386692 |
| lutzomyia vectors for cutaneous leishmaniasis in southern brazil: ecological niche models, predicted geographic distributions, and climate change effects. | geographic and ecological distributions of three lutzomyia sand flies that are cutaneous leishmaniasis vectors in south america were analysed using ecological niche modelling. this new tool provides a large-scale perspective on species' geographic distributions, ecological and historical factors determining them, and their potential for change with expected environmental changes. as a first step, the ability of this technique to predict geographic distributions of the three species was tested st ... | 2003 | 12906876 |
| [ecology of lutzomyia (nyssomyia) whitmani in an urban area in maringá, paraná, brazil]. | to study the fauna, hours of activity and seasonality of phlebotomines in forest animal habitats in the ingá park, on the urban perimeter of the municipality of maringá, paraná state, brazil. | 2003 | 14569343 |
| recent observations on the sand fly (diptera: psychodidae) fauna of the state of rondônia, western amazônia, brazil: the importance of psychdopygus davisi as a vector of zoonotic cutaneous leishmaniasis. | sand flies were collected in the central region of the state of rondônia (w 64 degrees 30' to 63 degrees 00' and s 10 degrees 00'to 11 degrees 00') using shannon and cdc light traps from october 1997 to august 2000. a total of 85,850 specimens representing 78 named species were captured. of these 14 were new records for rondônia. the proportion of males/females was 1/1.131. trypanosomatids, that are presently being identified, were detected in 11 species. leishmania (viannia) naiffi was recorded ... | 2003 | 14595450 |
| genetic variability in geographical populations of lutzomyia whitmani elucidated by rapd-pcr. | unequivocal identification of phlebotomine sand flies is of crucial importance in epidemiological studies of leishmaniasis, because certain species may act as vectors, depending on behavior and physiology. for lutzomyia whitmani, a major vector of american human cutaneous leishmaniasis in brazil, an increasing number of studies have suggested the existence of a species complex. in the present work, we evaluated the genetic variability of l. whitmani populations from four brazilian foci of that d ... | 2004 | 15061277 |
| phenetic studies on randomly amplified polymorphic dna-polymerase chain reaction-variability of four geographical populations of lutzomyia whitmani (diptera: psychodidae) in brazil. | previous evaluation of the genetic variability of four biogeographical populations of lutzomyia whitmani from known foci of cutaneous leishmaniasis in brazil demonstrated two main spatial clusters: corte de pedra-ba, ilhéus-ba and serra de baturité-ce in the first cluster, and martinho campos-mg in the second. further analysis showed a high degree of homogeneity in corte de pedra population but not in the others, which presented a significant percentage of specimens displaced from their phenon o ... | 2004 | 15094900 |
| [lutzomyia whitmani periurbanization in a focus of cutaneous leishmaniasis in the state of maranhão, brazil]. | an entomological survey was performed in the periurban area of the municipality of dom pedro in the state of maranhão in 2000, in order to estimate the abundance of lutzomyia longipalpis, due to the occurrence of one suspect death caused by kala azar. however, it was surprisingly verified that 82.4% (2,440 specimens) from the total of 2,961 sand flies captured in the peridomicile were lutzomyia whitmani. this association has indicated a new pattern for cutaneous leishmaniasis transmission (urban ... | 2004 | 15330071 |
| moonlight and blood-feeding behaviour of lutzomyia intermedia and lutzomyia whitmani (diptera:psychodidae:phlebotominae), vectors of american cutaneous leishmaniasis in brazil. | lutzomyia intermedia (lutz & neiva, 1912) and l. whitmani (antunes & coutinho, 1939) (diptera: psychodidae: phlebotominae), two important vectors of american cutaneous leishmaniasis in brazil, occur in sympatry in the locality of posse county, petropolis municipality, state of rio de janeiro, brazil. we investigated the influence of the lunar cycle on the frequency of specimens of the two species caught while attempting to bite the collectors and in cdc light traps. analysis of the numbers of sa ... | 2005 | 15867961 |
| nocturnal activity rhythms of lutzomyia intermedia and lutzomyia whitmani (diptera: psychodidae) in a transmission area of american cutaneous leishmaniasis in rio de janeiro state, brazil. | the phlebotomine sand flies lutzomyia (nyssomyia) intermedia (lutz & neiva) and lutzomyia (nyssomyia) whitmani (coutinho & antunes) are important vectors of leishmania (vianna) braziliensis, the etiological agent of american cutaneous leishmaniasis. in some areas, both species occur in sympatry, and their relative roles as vectors in these areas are not clear. we studied the nocturnal activity and biting rhythms of both species in posse, a locality in rio de janeiro state, brazil. our results sh ... | 2005 | 16465739 |
| [evaluation of sandfly control in lobato municipality, paraná state, southern brazil]. | sandfly control measures were evaluated at the da barra ranch, lobato municipality, paraná state, brazil. the insects were captured with falcão traps in houses, a cattle corral, and a forest area from july to november 1999 and from february to june 2000. in december 1999 and january 2000 the following measures were taken to decrease the sandfly density in peridomiciliary areas and domiciles: (i) screens were placed on windows of buildings (domiciles, dormitory, cafeteria); (ii) all organic mater ... | 2006 | 16501757 |
| seasonal variation of lutzomyia longipalpis in belo horizonte, state of minas gerais. | between october, 1997 and september, 1999 in belo horizonte, minas gerais a study of seasonal variation of lutzomyia longipalpis was carried out in three distinct areas of the municipality. sand flies were sampled at 15-day intervals in three residences, in each of which two cdc light traps were installed, one indoors and the other in the peridomicile. a total of 397 sand flies were captured in the three areas, with 65%, 30% and 1% of specimens collected in the eastern, northeast and barreiro di ... | 2006 | 16501767 |
| phlebotomines (diptera: psychodidae) in forested areas of the serra da bodoquena, state of mato grosso do sul, brazil. | investigation was undertaken on the behaviour of the phlebotomine fauna in caves, forests, and anthropic environments of the serra da bodoquena, between january 1998 and january 2000. this paper reports on the phlebotomines captured in forested areas with automatic light traps (alt), shannon traps (st), aspiration (an), at natural resting sites and by human attractiveness (ha) during 24 h. the diversity and abundance of the species were investigated with alt installed at 16 points (ground level) ... | 2006 | 16830711 |
| molecular polymorphism, differentiation and introgression in the period gene between lutzomyia intermedia and lutzomyia whitmani. | lutzomyia intermedia and lutzomyia whitmani (diptera: psychodidae) are important and very closely related vector species of cutaneous leishmaniasis in brazil, which are distinguishable by a few morphological differences. there is evidence of mitochondrial introgression between the two species but it is not clear whether gene flow also occurs in nuclear genes. | 2006 | 17069656 |
| [human and canine american cutaneous leishmaniasis in mariluz, paraná state, brazil]. | an outbreak of american cutaneous leishmaniasis was reported in 2002 in mariluz, northwestern paraná state, brazil. of 38 humans who were investigated, four had healed lesions, ten showed lesions in the healing process, and 24 had active lesions. of the 126 dogs, 20 (15.9%) presented suggestive lesions and 24 (19%) had positive serology. parasites isolated from two patients and three dogs were identified as leishmania (viannia) braziliensis serodeme i. the captured sand flies were identified as ... | 2006 | 17096049 |
| [host feeding preferences of sandflies in rural area, southern brazil]. | to investigate the fauna and host feeding preferences of sandflies as for domestic animals in an endemic area of american cutaneous leishmaniasis. | 2006 | 17173167 |
| heparin binding proteins from leishmania (viannia) braziliensis promastigotes. | we have examined the heparin binding proteins from leishmania (viannia) braziliensis promastigotes (hbp-lb) by chromatography assays. the proposed strategy to isolate an enriched fraction of the hbp-lb consisted of an association of the triton x-114 method with affinity chromatography in heparin-sepharose 4b column. sds-page analysis of the eluted proteins showed two main protein bands (65.0 and 54.5 kda), while a single protein band was observed in native electrophoresis gel. the hemagglutinati ... | 2007 | 17292553 |
| [molecular diagnosis of the natural infection rate due to leishmania sp in sandflies (psychodidae, lutzomyia) in the amazon region of maranhão, brazil]. | the natural infection rate due to leishmania was studied in three different sandfly species using the polymerase chain reaction technique. leishmania specific primers were designed to examine whether sandfly pools were infected. in total 1,100 female sandflies separated into pools of 10 individuals, consisting of 50 pools of lutzomyia whitmani, 43 of lutzomyia triacantha and 17 of lutzomyia choti, were analyzed. among all the pools examined, four pools of lutzomyia whitmani were positive, but no ... | 2006 | 17308698 |
| lutzomyia (nyssomyia) whitmani s.l . (antunes & coutinho, 1939)(diptera: psychodidae: phlebotominae): geographical distribution and the epidemiology of american cutaneous leishmaniasis in brazil--mini-review. | the aim of the present study, in view of the widespread geographical distribution of lutzomyia (nyssomyia) whitmani s.l. in brazil, in close association with the regions of transmission of leishmania (viannia) braziliensis and l. (v.) shawi, is to investigate the distribution of this sand fly species and american cutaneous leishmaniasis (acl) in relationship to vegetation and landscape ecology throughout brazil. thematic maps were elaborated by the mapinfo programme, giving information on the sp ... | 2007 | 17426877 |
| list of species in the genus lutzomyia, frança, 1924 (psychodidae, phlebotominae) from the state of mato grosso. | this work had the objective of listing the sand fly species that occur in the state of mato grosso, brazil. data relating to entomological surveys conducted between 1996 and 2004 were obtained from the national health foundation and the state health department, and this was supplemented with information from research carried out in the state and from the specialized literature. there were records of 106 sand fly species belonging to the genus lutzomyia. this is a rich and diversified fauna, with ... | 2007 | 17486246 |
| natural infection of phlebotomines (diptera: psychodidae) in a visceral-leishmaniasis focus in mato grosso do sul, brazil. | the main purpose of this study was to investigate natural infection by leishmania in phlebotomine females in a visceral-leishmaniasis focus in antonio joão county in mato grosso do sul state, brazil. between june and october 2003, the digestive tracts of 81 females captured in aldeia campestre, aldeia marangatu and povoado campestre were dissected. the females were separated by species, location, area and date of capture into 13 groups and kept in ethanol 70%. to identify the leishmania species ... | 2007 | 17505673 |
| [light and hens as attraction factors of nyssomyia whitmani in a rural area, southern brazil]. | to verify the influence of traps with electric light and hens as factors that attract sandflies and compare results between capture methods. | 2007 | 17515991 |
| phlebotomine fauna (diptera: psychodidae) and species abundance in an endemic area of american cutaneous leishmaniasis in southeastern minas gerais, brazil. | this study was undertaken to identify the phlebotomine fauna and species abundance in domiciliary and peridomiciliary (hen-house and guava-tree) environments, on a lake shore, a cultivated area of coffee and banana, and a forested area of conceição da aparecida municipality, southeastern the state of minas gerais, to provide information for the control and epidemiological surveillance of leishmaniasis in this area. the captures were carried out monthly between may 2001 and november 2002, with au ... | 2007 | 17710302 |
| ultrastructural comparison of external morphology of immature stages of lutzomyia (nyssomyia) intermedia and lutzomyia (nyssomyia) whitmani (diptera: psychodidae), vectors of cutaneous leishmaniasis, by scanning electron microscopy. | lutzomyia (nyssomyia) intermedia (lutz & neiva 1912) and lutzomyia (nyssomyia) whitmani (antunes & coutinho 1939) (diptera: psychodidae) are vectors of american cutaneous leishmaniasis in several endemic regions of brazil. we analyzed the external morphological aspects of the immature stages of these two vectors by using scanning electron microscopy. in general, the larval stages of the two species are morphologically similar, although some differences were noted. detailed examination of the egg ... | 2007 | 18047187 |
| [preliminary study on feeding preference of nyssomyia neivai (pinto) and nyssomyia whitmani (antunes & coutinho) (diptera: psychodidae) in a rural area of the state of paraná, south brazil]. | due to the importance of sandflies in the american cutaneous leishmaniasis epidemiology, we investigated the feeding preference of sandflies related to domestic animals common in domiciliary environments in endemic rural areas, where this disease occurs. the sandflies were collected with falcão light traps, installed in cages, each one containing one domestic animal kind (pig, dog, rabbit or chicken), in recanto marista, in doutor camargo municipality. forty five collections were made, totaling ... | 2007 | 18246272 |
| [research of natural infection of phlebotomines for leishmania, in the state of paraná]. | american cutaneous leishmaniasis has been reported in all brazilian states and in the paraná this disease is endemic. the objective of this work was to detect natural infections in phlebotomines to verify the vector competence of these insects and the identification of the parasite species. phlebotomines were collected using falcão and shannon traps, in the municipalities of doutor camargo, fênix and mandaguari, between november 2005 and august 2006. from 12,930 phlebotomines were collected, 2,4 ... | 2008 | 18368265 |
| detection of leishmania dna in phlebotomines captured in campo grande, mato grosso do sul, brazil. | over the past years, leishmaniases have become a public health issue in the brazilian state of mato grosso do sul, particularly in campo grande, the state capital. the purpose of this study was to detect the presence of leishmania dna in the population of phlebotomine sandflies using dna amplification by pcr. insect captures were carried out from 4 pm. to 7 am for 4 consecutive days each month from october 2005 to september 2006 in 16 neighborhoods located in 7 urban regions of campo grande. tra ... | 2008 | 18456262 |
| observations on the feeding habits of lutzomyia longipalpis (lutz & neiva, 1912) (diptera: psychodidae: phlebotominae) in campo grande, an endemic area of visceral leishmaniasis in mato grosso do sul, brazil. | sand flies were captured weekly with cdc light traps from december 2003 to november 2005 in three areas of campo grande, in the brazilian state of mato grosso do sul. these areas incorporated two patches of remnant forest and five houses. the blood meals of engorged female sand flies were identified using the avidin-biotin system of immunoenzymatic elisa capture. most (327/355) of the females analysed were lutzomyia longipalpis, of which 66.4% reacted with human blood, 64.8% with that of birds a ... | 2008 | 18611387 |
| [evaluation of sandfly control measures]. | collections of sandflies were made between may 2005 and april 2006. the results were compared with those from collections undertaken between april 2001 and september 2002, in order to evaluate the measures used to decrease the density of these insects in recanto marista, municipality of doutor camargo, state of paraná. the collections were carried out by falcão traps inside domiciles and hen sheds, from 10 p.m. to 2 a.m. once a week, four times a month. in 2005 and 2006, 213,195 sandflies were c ... | 2008 | 18719807 |
| [geographical distribution of lutzomyia (nyssomyia) whitmani (antunes & coutinho, 1939) in the state of mato grosso]. | in the state of mato grosso, 100% of the municipalities have records of autochthonous cases of american cutaneous leishmaniasis. the present study had the aim of investigating the geographical distribution of the lutzomyia whitmani in the state. mato grosso has three distinct ecosystems: the savannah, the marshland and the area of the amazon domain. data on occurrences of lutzomyia whitmani were obtained from reports on entomological surveys carried out by the entomology group of the national he ... | 2008 | 18853009 |
| epidemiological aspects of cutaneous leishmaniasis in the iguazú falls area of argentina. | over the last three decades the incidence of american cutaneous leishmaniasis (acl) has increased sharply in argentina and throughout the world. in the iguazú falls area, on the border between brazil and paraguay, the incidence of human acl has risen since 2004. most of the 36 cases of human acl reported until 2005 have involved males over 15 years old (75%) infected during deforestation to establish individual farms. captures carried out in primary forest, periurban areas, and deforested land s ... | 2009 | 18983809 |
| the finding of lutzomyia almerioi and lutzomyia longipalpis naturally infected by leishmania spp. in a cutaneous and canine visceral leishmaniases focus in serra da bodoquena, brazil. | to identify natural infections by leishmania spp. in insect vectors of cutaneous and visceral leishmaniasis, we performed field studies in natural and anthropic environments in the guaicurus settlement (bodoquena range) of the bonito municipality, mato grosso do sul state, brazil. from october 2002 to october 2003, a total of 1395 sandfly females were captured with shannon and light traps and dissected in search of flagellates. the sample is composed of a total of 13 species, with lutzomyia alme ... | 2009 | 19062193 |
| [sandflies in an areas with occurrences of human cases of american cutaneous leishmaniasis in the municipality of seropédica, state of rio de janeiro]. | american cutaneous leishmaniasis is caused by protozoa of the genus leishmania, which affects the skin and mucosa. it is primarily a zoonotic infection. sandfly surveys were conducted in four areas with occurrences of human cases of american cutaneous leishmaniasis in the municipality of seropédica. a manual method was used to catch specimens between 6:00 pm and 10:00 pm, for 12 consecutive months. from october 2004 to september 2005, we caught 2,390 individuals belonging to four species: lutzom ... | 2009 | 19448931 |
| contribution to the knowledge of the phlebotomine sand flies fauna (diptera: psychodidae) of timóteo municipality, minas gerais, brazil. | an investigation of the phlebotomine sandfloy fauna in the municipality of timóteo, minas gerais state, brazil, was undertaken with new jersey traps placed in seven neighborhoods from december 2005 to january 2006. a total of 2,289 phlebotomine sandfloy specimens were recorded. nyssomyia whitmani (antunes & coutinho) (48.1%), nyssomyia intermedia (lutz & neiva) (36.8%) and micropygomyia quinquefer (dyar) (7.1%) were the most abundant species sampled. some sandfloy species that play a role in the ... | 2009 | 19488518 |
| species diversity of leishmania (viannia) parasites circulating in an endemic area for cutaneous leishmaniasis located in the atlantic rainforest region of northeastern brazil. | to identify the aetiological agents of cutaneous leishmaniasis and to investigate the genetic polymorphism of leishmania (viannia) parasites circulating in an area with endemic cutaneous leishmaniasis (cl) in the atlantic rainforest region of northeastern brazil. | 2009 | 19708899 |
| phlebotomine fauna (diptera: psychodidae) of an american cutaneous leishmaniasis endemic area in the state of mato grosso do sul, brazil. | the occurrence of an outbreak of cutaneous leishmaniasis associated with leishmania (leishmania) amazonensis in the municipality of bela vista, state of mato grosso do sul, brazil, and the absence of information on its vectors in this area led the authors to undertake captures of phlebotomine sand flies, using shannon traps and automatic cdc light traps, in domiciles, forested areas and animal shelters from february 2004-january 2006. a total of 808 specimens belonging to 18 sandfly species have ... | 2009 | 19820827 |
| american cutaneous leishmaniasis in the pontal of paranapanema - sp, brazil: ecological and entomological aspects. | american cutaneous leishmaniasis (acl) occurs in epidemic outbreaks and in sporadic cases with small annual variation in the pontal of paranapanema, sp. there is little research on the sandfly fauna of this region. the last outbreaks were related to the movement of the landless workers (mst) and with the ecological tourism in preserved forest of the parque estadual do morro do diabo (pemd). aim: identification of the sandfly fauna within the pemd, mainly anthropophilic species already incriminat ... | 2009 | 19893981 |
| phlebotomine sand flies (diptera: psychodidae: phlebotominae) of alagoas state, northeast of brazil. | the phlebotomine sandflies of the state of alagoas are poorly known, with more than 40 years since the last report on sandflies in the state. in here, psathyromyia brasiliensis (costa lima), micropygomyia quinquefer (dyar,) and evandromyia termitophila (martins, falcão & silva) are registered for the first time in alagoas. this report increases to nine the number of species collected in the state, including lutzomyia longipalpis (lutz & neiva), migonemyia migonei (frança), nyssomyia whitmani (an ... | 2009 | 19943022 |
| epidemiological study on leishmaniasis in an area of environmental tourism and ecotourism, state of mato grosso do sul, 2006-2007. | the aims of this study were to carry out a serological survey of canine leishmaniasis and identify the phlebotomine fauna in the urban area of bonito, mato grosso do sul. the serological survey was conducted on a sample of 303 dogs, by means of the indirect immunofluorescence test. phlebotomines were captured using automated light traps. the serological survey found that 30% of the dogs were seropositive, both from the center and from all districts of the town. a total of 2,772 specimens of phle ... | 2009 | 19967228 |
| [sandflies (diptera: psychodidae) in indigenous villages in the state of mato grosso]. | this study was conducted in 25 indigenous villages in 13 municipalities of the state of mato grosso. 4,424 specimens of 37 species of the genus lutzomyia and one species of the genus brumptomyia were identified. vectors for american tegumentary leishmaniasis and visceral leishmaniasis were abundantly captured, and these represented 28.7% (lutzomyia whitmani) and 23.6% (lutzomyia longipalpis), respectively. | 2009 | 19967248 |
| differential midgut attachment of leishmania (viannia) braziliensis in the sand flies lutzomyia (nyssomyia) whitmani and lutzomyia (nyssomyia) intermedia. | the interaction between leishmania and sand flies has been demonstrated in many old and new world species. besides the morphological differentiation from procyclic to infective metacyclic promastigotes, the parasite undergoes biochemical transformations in its major surface lipophosphoglycan (lpg). an upregulation of beta-glucose residues was previously shown in the lpg repeat units from procyclic to metacyclic phase in leishmania (viannia) braziliensis, which has not been reported in any leishm ... | 2010 | 20011070 |
| species structure of sand fly (diptera: psychodidae) fauna in the brazilian western amazon. | we surveyed areas of the state of rondônia in western amazon for phlebotomine, which are potential vectors of leishmaniasis. a total of 5,998 specimens were captured, resulting in the identification of 48 species within the lutzomyia (99.98%) and brumptomyia (0.02%) genera. the predominant species was lutzomyia davisi, followed by lutzomyia umbratilis, lutzomyia llanosmartinsi, lutzomyia c. carrerai, lutzomyia dendrophyla, lutzomyia nevesi and lutzomyia whitmani. all sand flies identified as vec ... | 2009 | 20027459 |
| distribution of lutzomyia whitmani in phytoregions of the state of maranhão, northeastern brazil. | the study had the aim of characterizing the geographical distribution of lutzomyia whitmani s.l. in the state of maranhão, northeastern brazil. between 1992 and 2005, 9,600 specimens (65.1% males and 34.9% females) were caught in the rural and urban zones of 35 municipalities in regions consisting of forests, savanna and mixed vegetation with coconut plantations, sandbanks and heath. greater abundance was observed in areas surrounding dwellings (91.6%) than inside the dwellings (8.4%). the prese ... | 2009 | 20027495 |
| sand flies (diptera: psychodidae) in the urban area of the municipality of cianorte, paraná state, brazil. | the endemicity of american cutaneous leishmaniasis (acl) in the cianorte municipality, paraná state the occurrence of human cases with the probable infection locus in the urban area, the presence of a permanently preserved modified native forest in the urban perimeter, and the lack of knowledge of the fauna of sand flies in the municipality provided the impetus for this study. the objective of this study was to assess the fauna, frequency and seasonality of the sand flies in the peridomicile, fo ... | 2009 | 20098934 |
| [occurrence of sand flies (diptera, psychodidae) in leishmaniasis foci in an ecotourism area around the lençóis maranhenses national park, brazil]. | the distribution and relative abundance of sand fly species were studied in the municipality of barreirinhas, maranhão state, brazil, around the lençóis maranhenses national park, from january to june 2005, august 2004, july 2005, and september/2008. a total of 6,658 specimens were captured. the most frequent species were lutzomyia whitmani (46.6%), l. longipalpis (29.9%), l. evandroi (17.1%), and l. lenti (4.8%), while l. termitophila, l. flaviscutellata, l. migonei, l. infraspinosa, l. sordell ... | 2010 | 20209223 |
| [blood feeding preference of lutzomyia whitmani (diptera, psychodidae) in a transmission area for american cutaneous leishmaniasis in the state of maranhão, brazil]. | the aim of this study was to determine the sources of blood meals for females of lutzomyia whitmani, a phlebotomine species incriminated as the main vector for american cutaneous leishmaniasis in maranhão. for this, 70 lutzomyia whitmani females were collected in the municipality of axixá, an area with one of the greatest numbers of cases of american cutaneous leishmaniasis in humans in maranhão. they were analyzed using the precipitin technique. ninety percent of the specimens showed a reaction ... | 2009 | 20209348 |
| [study on the transmission of american cutaneous leishmaniasis in the federal district]. | the objectives of this study were to characterize cutaneous leishmaniasis in patients from the federal district, investigate subclinical infection in people living in the same localities as patients and identify the species of phlebotomus and leishmania. patients attended at the university hospital of brasília between august 2006 and june 2007 were selected. relatives and neighbors of the patients underwent the montenegro intradermal test and indirect immunofluorescence. phlebotomines were caugh ... | 2009 | 20209356 |
| species-specific identification of leishmania in naturally infected sand flies captured in mato grosso do sul state, brazil. | an increase in cutaneous and visceral leishmaniasis cases has been reported in recent years in the state of mato grosso do sul, brazil, and little is known to date about their etiological agents. an investigation into natural leishmania infection of sand flies captured in this state between december 2003 and august 2004 was carried out. mini-exon sequences were used as targets to identify leishmania, and an rflp technique was employed for those identified as belonging to the viannia subgenus. ca ... | 2010 | 20219438 |
| study of sand fly fauna in an endemic area of american cutaneous leishmaniasis and canine visceral leishmaniasis in the municipality of espírito santo do pinhal, são paulo, brazil. | canine american visceral leishmaniasis and american cutaneous leishmaniasis (acl) cases have been recorded in espírito santo do pinhal. the aim of this study was to gather knowledge of the sand fly community and its population ecology within the municipality. captures were made weekly over a period of 15 months in the urban, periurban and rural areas of the municipality, using automatic light traps. a total of 5,562 sand flies were collected, comprising 17 species. the most abundant species were ... | 2010 | 20428683 |
| phlebotominae fauna (diptera: psychodidae) in an urban district of belo horizonte, brazil, endemic for visceral leishmaniasis: characterization of favored locations as determined by spatial analysis. | belo horizonte, the capital of the southeastern state of minas gerais, brazil, and the fourth-largest city in the country, has the highest incidence of human visceral leishmaniasis (vl) together with a high prevalence of canine vl. the northeast sanitary district (nsd) of belo horizonte has the largest historical average of human vl cases in the metropolitan region, and is classified as a priority area for epidemiological and entomological monitoring of the disease. the objectives of the present ... | 2010 | 21110938 |
| natural infection of nyssomyia neivai by leishmania (viannia) spp. in the state of paraná, southern brazil, detected by multiplex polymerase chain reaction. | natural sandfly infection by leishmania spp. in an area endemic for american cutaneous leishmaniasis was analyzed using multiplex polymerase chain reaction (pcr). the sandflies were captured using falcão light traps in an endemic area of the municipality of doutor camargo during march, april, and june 2008. in total, 1803 females were analyzed; 1755 were nyssomyia neivai (pinto) and 48 were nyssomyia whitmani (antunes and coutinho). multiplex pcr analyses using mp3h-mp1l and 5llcac-3llcac primer ... | 2010 | 21142960 |
| study of phlebotomine sand flies (diptera: psychodidae) collected in a leishmania-endemic area of the metropolitan region of belo horizonte, brazil. | phlebotomine sand flies are distributed across nearly all faunal regions of the world, represented by over 800 species, of which many are important vectors of human pathogens. brazil is currently faced with the expansion and urbanization of leishmaniases, with an increase in the numbers of human cases and seropositive dogs in various medium-sized to large cities. the objective of the current study was to survey the phlebotomine sand fly species in an area endemic for american cutaneous leishmani ... | 2010 | 21175043 |
| phlebotomine sand flies (diptera: psychodidae) and leishmania infection in gafanhoto park, divinópolis, brazil. | the potential of gafanhoto park as an american cutaneous leishmaniasis (acl) focus was evaluated by examination of sand fly vectors of the leishmania parasite. this forest remnant is located in a periurban area of divin6polis, brazil, where autochthonous cases of acl have been reported. sand fly populations were monitored over a 2-yr period (2006-2008) by using light traps (hp and shannon). during systematic collections with hp traps, 824 specimens in total (342 males and 482 females) of 21 spec ... | 2010 | 21175074 |
| the sand fly fauna (psychodidae: phlebotominae) in the region of saquarema, state of rio de janeiro, brazil, an endemic area of cutaneous leishmaniasis transmission. | cutaneous leishmaniasis, caused by leishmania (viannia) braziliensis, is sporadic in many rural and suburban areas of rio de janeiro state. an investigation was carried out during 2008/9 in the municipality of saquarema, rio de janeiro, southeast brazil, in order to identify the phlebotomine sand fly fauna. more than 2,100 sand flies were collected in peridomestic areas in two chicken coops using cdc light traps. nine species of phlebotomine sand flies were identified: nyssomyia intermedia, nyss ... | 2011 | 21366786 |
| sandfly fauna (diptera: psychodidae) in parque do sabiá complex, uberlândia, minas gerais, brazil. | between april 2003 and may 2009 phlebotomine sandflies were collected in parque do sabiá complex, uberlândia municipality, minas gerais state, brazil, using cdc and shannon traps. the objective was to associate the sandfly species captured to the risk of the transmission of leishmaniasis in the municipality. the 126 captured specimens belonging to six species of phlebotomine, among which lutzomyia (psychodopygus) davisi (root, 1934) predominated with 113 specimens (89.7%). the remaining captured ... | 2011 | 22012450 |
| phlebotominae fauna in a recent deforested area with american tegumentary leishmaniasis transmission (puerto iguazú, misiones, argentina): seasonal distribution in domestic and peridomestic environments. | phlebotominae sand flies have been involved as vectors of leishmania. in argentina, nyssomyia neivai and nyssomyia whitmani are involved as the main vectors of american tegumentary leishmaniasis (atl). in the northeastern border of the country, an outbreak of atl during 2004-2005 was associated with deforestation and subsequent settlement of farmers close to the edge of the forest. the aim of this work was to study the community composition of sand flies along time in farms located near primary ... | 2011 | 22155061 |
| phlebotomine sand flies and canine infection in areas of human visceral leishmaniasis, cuiabá, mato grosso. | visceral leishmaniasis is a systemic infectious disease that can cause to a severe, potentially life-threatening chronic condition in humans. risk factors for infection in urban areas have been associated with poor living conditions, the presence of sand fly vectors and infected pets. this study aimed to describe sand fly and canine infection in the neighborhoods of human visceral leishmaniasis occurrence in the city of cuiabá, mato grosso state, central-western brazil, reported between january ... | 2011 | 21961754 |
| multilocus analysis of introgression between two sand fly vectors of leishmaniasis. | the phlebotomine sand flies (diptera:psychodidae) lutzomyia (nyssomyia) intermedia lutz & neiva 1912 and lutzomyia (nyssomyia) whitmani antunes & coutinho 1932 are two very closely related species and important vectors of american cutaneous leishmaniasis. two single-locus studies have revealed evidence for introgression between the two species in both mitochondrial and nuclear genomes. these findings have prompted the development of a multilocus approach to investigate in more detail the genetic ... | 2008 | 18474115 |
| ecological aspects of phlebotomine sandflies (diptera: psychodidae) from a cave of the speleological province of bambuí, brazil. | phlebotomines are invertebrate hosts of leishmania genus species which are etiological agents of leishmaniases in humans and other mammals. sandflies are often collected in entomological studies of caves both in the inner area and the adjacent environments. caves are ecotypes clearly different from the external environment. several caves have been opened to public visitation before any studies were performed and the places do not have scientific monitoring of the fauna, flora, geological and geo ... | 2013 | 24130847 |
| geographic distribution of phlebotomine sandfly species (diptera: psychodidae) in central-west brazil. | this study updates the geographic distributions of phlebotomine species in central-west brazil and analyses the climatic factors associated with their occurrence. the data were obtained from the entomology services of the state departments of health in central-west brazil, scientific collections and a literature review of articles from 1962-2014. ecological niche models were produced for sandfly species with more than 20 occurrences using the maxent algorithm and eight climate variables. in all, ... | 2015 | 26018450 |
| sandflies (diptera, psychodidae) from forest areas in botucatu municipality, central western são paulo state, brazil. | the study of the distribution and ecology of sandfly species is essential for epidemiological surveillance and estimation of the transmission risk of leishmania spp. infection. | 2013 | 23849624 |
| natural leishmania (viannia) spp. infections in phlebotomine sand flies (diptera: psychodidae) from the brazilian amazon region reveal new putative transmission cycles of american cutaneous leishmaniasis. | in amazonian brazil the etiological agents of american cutaneous leishmaniasis (acl) belong to at least seven leishmania species but little is known about the putative phlebotomine sand fly vectors in different biomes. in 2002-2003 a survey of the phlebotomine fauna was undertaken in the "floresta nacional do tapajós", belterra municipality, in the lower amazon region, western pará state, brazil, where we recently confirmed the presence of a putative hybrid parasite, l. (v.) guyanensis × l. (v.) ... | 2016 | 27235194 |
| sandflies in an urban area of transmission of visceral leishmaniasis in midwest brazil. | the phlebotomine fauna of campo grande city, capital of mato grosso do sul state in brazil, an endemic area for visceral leishmaniasis, has been thoroughly investigated, but all the insect collections were undertaken with automatic light traps. the present study sought to investigate the fauna in this city using shannon and disney traps, having human beings and hamsters, respectively, as bait. both types of traps were installed in forest fragment and peridomiciliary areas in the period from 2007 ... | 2016 | 27593433 |
| evaluation of light-emitting diodes as attractant for sandflies (diptera: psychodidae: phlebotominae) in northeastern brazil. | hoover pugedo light traps were modified for use with green and blue-light-emitting diodes to trap phlebotomine sandflies in northeastern brazil. a total of 2,267 specimens belonging to eight genera and 15 species were sampled. the predominant species were nyssomyia whitmani(34.41%) and micropygomyia echinatopharynx(17.25%).the green led trap prevailed over the blue and control lights; however, no statistically significant difference could be detected among the three light sources. even without s ... | 0 | 26517661 |