Publications

[malaria control in a hydroelectric power plant project in the state of amazonas].		1982	7187521
the house-frequenting, host-seeking and resting behavior of anopheles darlingi in southeastern amazonas, brazil.	studies on the behavior of anopheles darlingi were conducted at a site along the ituxi river, amazonas, brazil. patterns of host-seeking activity inside and outside a single-walled house both presented activity peaks at sunset and sunrise, but biting activity inside a four-walled house peaked after sunset then gradually decreased during the night. major movements of females into and out of the four-walled house occurred at sunset and sunrise, respectively. marked engorged and unengorged females ...	1987	3504928
behavioral response of anopheles darlingi to ddt-sprayed house walls in amazonia.	the behavioral response of anopheles darlingi females to spraying of house walls with ddt was studied along the ituxi river in amazonas, brazil, using a house sprayed with 2 g ddt per square meter of wall surface and an untreated house serving as a control. it was found that hardly any an. darlingi females entered, exited, or took blood meals inside the treated house after it was sprayed with ddt, and that specimens marked and released inside the house tended to depart immediately. this behavior ...	1991	1742567
[response of anopheles darlingi to spraying with ddt in amazonas, brazil].	to investigate the effectiveness of the malaria control program, the behavior of anopheles darlingi females was studied following spraying of ddt on the walls of house-holds along the ituxi river in the state of amazonas, brazil. the study was carried out on two four-walled dwellings, one of which was sprayed with 2 g of ddt per m2 of wall. three methods were used to study the mosquitoes' activity before and immediately after the spraying, as well as at 2 and 12 months post-spraying. these metho ...	1991	1831028
biological variation in anopheles darlingi root.	behavioural variation in the south american malaria vector anopheles darlingi is described. at the centre of its distribution, in forest areas close to the city of manaus, brazil, it is primarily exophagic and exophilic. mosquitoes from this area are chromosomally diverse. towards the northern edge of its distribution (in guyana and venezuela) it is more endophagic and less diverse chromosomally. similarly in the south (in the state of minas gerais) it is less polymorphic. in this area, however, ...	1996	9070397
genetic differentiation and diagnostic loci among anopheles (nyssorhynchus) rangeli, an. (nys.) nuneztovari, and an. (nys.) dunhami (diptera: culicidae) in the brazilian amazon.	genetic variability and divergence were estimated for populations of anopheles rangeli gabaldón, cova-garcia & lopes, anopheles nuneztovari gabald6n cytotype a, and anophels dunhami causey from the brazilian amazon using isozyme electrophoresis. these species are included in the oswaldoi subgroup, subgenus nyssorhynchus (diptera: culicidae). thirteen enzymes yielded a total of 22 loci, of which 14 were monomorphic in the three species. three diagnostic loci (gpi-1, hk-1, and me) and a strong dif ...	2002	12144292
isoenzymatic variability among five anopheles species belonging to the nyssorhynchus and anopheles subgenera of the amazon region, brazil.	an isoenzymatic comparative analysis of the variability and genetics differentiation among anopheles species was done in populations of an. (nys.) intermedius and an. (ano.) mattogrossensis of the anopheles subgenus, and of an. darlingi, an. albitarsis and an. triannulatus of the nyssorhynchus subgenus, with the aim of detecting differences between both subgenera and of estimating the degree of genetic intere specific divergence. samples from macap , state of amap and janauari lake, near manaus ...	2003	12764442
the physical gene hsp70 map on polytene chromosomes of anopheles darlingi from the brazilian amazon.	in situ hybridization was used to determine the physical location of the hsp70 genes in salivary polytene chromosomes of anopheles darlingi from manaus and macapá, brazil, and to assess the usefulness of the hsp70 locus as a genetic marker in a. darlingi populations. in both populations, the double markings corresponding to the hsp70-12a and hsp70-14a genes were located on the right arm of chromosome 2. the hsp70 locus was considered to be an excellent marker for studying chromosomal evolution a ...	2004	15098741
non-planed urbanization as a contributing factor for malaria incidence in manaus-amazonas, brazil.	this paper presents a study on the dynamics of malaria in manaus and its relationship with the urban expansion and environmental factors related to it. the purpose of this paper is: to analyse how the form of occupying the emptied space in the city, together with the urbanization and factors related to the environment, have contributed for the establishment, increase and/or sustainability of malaria in the urban area of the city of manaus, amazonas, brazil.	2004	15382454
differentiation and genetic variability in natural populations of anopheles (n.) triannulatus (neiva & pinto, 1922) of brazilian amazonia.	populations of anopheles triannulatus from macapá (ap), aripuanã (mt), ji-paraná (ro), and manaus-janauari lake (am) were studied using 16 enzymatic loci. the results of the isozyme analysis showed that the population of macapá presented higher polymorphism (56.3%). the lowest variability was observed in the population of manaus (p = 25.0; ho = 0.077 +/- 0.046). the results of wright's f statistics showed unbalance due to excess of homozygotes (f(is) > f(st)), denoting a certain intrapopulationa ...	2004	15462307
isozyme similarity in anopheles oswaldoi sensu lato (diptera: culicidae) from the amazon region, brazil.	isozyme electrophoresis studies were conduced on anopheles oswaldoi sensu lato from three states in amazonian (brazil), including acre, where this taxon has been incriminated as a potential human malaria vector. the 13 enzymes analyzed yielded a total of 20 loci. of these, 10 were monomorphic in the three samples. diagnostic loci were not found. the measures of genetic variability showed mean number of alleles per locus between 1.5 and 2.0, percentage of polymorphic loci of 40%, and mean heteroz ...	2005	15962781
mosquitoes of the jaú national park and their potential importance in brazilian amazonia.	abstract. an entomological inventory was conducted between 1993 and 1996 to obtain information on the diversity of mosquitoes (diptera: culicidae) in the jaú national park, state of amazonas, brazil. a total of 10,159 adult (91%) and immature mosquito specimens, representing 130 taxa (species + morphospecies) in 16 genera, was collected. a species list for the family culicidae is presented, including 30 new records for the state of amazonas. the collecting localities were restricted to the alluv ...	2005	16336308
karyotype of brazilian anopheles albitarsis sensu lato (diptera:culicidae).	anopheles (nyssorhynchus) albitarsis sensu lato is an important malaria vector in brazil, especially in the brazilian amazon region. chromosome preparations of fourth-instar larvae of a. albitarsis from iranduba and coari (am) and ilha comprida (sp) were analyzed for karyotype determination and to improve cytogenetic identification of this species. anopheles albitarsis possesses 2n = 6 chromosomes, with two pairs (submetacentric and metacentric) of autosomes and one pair of sex chromosomes, with ...	2005	16475113
a new challenge for malaria control in brazil: asymptomatic plasmodium infection--a review.	the evolution of malaria in brazil, its morbidity, the malaria control programs, and the new challenges for these programs in the light of the emergence of asymptomatic infection in the amazon region of brazil were reviewed. at least six brazilian research groups have demonstrated that asymptomatic infection by plasmodium is an important impediment to malaria control, among mineral prospectors in mato grosso and riverside communities in rondônia and, in our group, in the middle and upper reaches ...	2006	16862314
molecular differentiation in natural populations of anopheles oswaldoi sensu lato (diptera: culicidae) from the brazilian amazon, using sequences of the coi gene from mitochondrial dna.	anopheles (nyssorhynchus) oswaldoi (peryassú, 1922) s. l., which has been incriminated as a potential human malaria vector in western brazilian amazon, may constitute a cryptic species complex. however, the most recent study with isozymes indicated high similarity among samples from the states of acre, amazonas and rondônia in the brazilian amazon. in the present study, 45 individuals were sequenced from sena madureira (state of acre), coari (state of amazonas), são miguel (state of rondônia), a ...	2006	17117365
population genetic structure of the major malaria vector anopheles darlingi (diptera: culicidae) from the brazilian amazon, using microsatellite markers.	the population genetic structure of anopheles darlingi, the major human malaria vector in the neotropics, was examined using seven microsatellite loci from nine localities in central and western amazonian brazil. high levels of genetic variability were detected (5-25 alleles per locus; h e = 0.519-0.949). there was deviation from hardy-weinberg equilibrium for 59.79% of the tests due to heterozygote deficits, while the analysis of linkage disequilibrium was significant for only two of 189 (1.05% ...	2007	17568937
[record of epidemiologically important culicidae in the rural area of manaus, amazonas].	the biodiversity of the amazon region includes many species of arthropod vectors in different ecotopes, thus enabling occurrences of diseases like malaria, filariasis and arbovirosis. from august 2001 to july 2002, we gathered culicids from inside homes, from areas surrounding these homes and from forested areas of the são joão community, in the rural zone of manaus, state of amazonas. 1240 specimens were collected, belonging to the culicinae (99%) and anophelinae (1%) subfamilies, with 50 speci ...	2008	19142448
resurrection of anopheles goeldii from synonymy with anopheles nuneztovari (diptera, culicidae) and a new record for anopheles dunhami in the brazilian amazon.	nucleotide sequences of the internal transcribed spacer 2 (its2) rdna and partial sequences of the cytochrome coxidase subunit i (coi) mtdna and white gene ndna were obtained from specimens of anopheles nuneztovari a collected in macapá (state of amapá), obidos, prainha and almeirim (state of pará), itacoatiara and parintins (state of amazonas), brazil, and compared with previously published sequences of a. nuneztovari s.l. results of the bayesian phylogenetic analyses performed using either coi ...	2008	19148419
night and crepuscular mosquitoes and risk of vector-borne diseases in areas of piassaba extraction in the middle negro river basin, state of amazonas, brazil.	a study of crepuscular and night-biting mosquitoes was conducted at remote settlements along the padauiri river, middle negro river, state of amazonas, brazil. collections were performed with human bait and a cdc-light trap on three consecutive days per month from june 2003-may 2004. in total, 1,203 h of collection were performed, of which 384 were outside and 819 were inside houses. at total of 11,612 specimens were captured, and anophelinae (6.01%) were much less frequent than culicinae (93.94 ...	2009	19274370
filamentous fungi associated with mosquito larvae (diptera: culicidae) in municipalities of the brazilian amazon.	several species of the family culicidae are important vectors of diseases in humans and other animals. immature stages are filter-feeders of organic particulate matter and microorganisms. studies on microbial diversity can contribute to the discovery of new substances that can be used in the pharmaceutical industry for food or for biological control. the aim of this study was to isolate and identify the fungi associated with culicidae larvae found in different habitats (natural and artificial), ...	2009	19618051
malaria in brazil: an overview.	malaria is still a major public health problem in brazil, with approximately 306,000 registered cases in 2009, but it is estimated that in the early 1940s, around six million cases of malaria occurred each year. as a result of the fight against the disease, the number of malaria cases decreased over the years and the smallest numbers of cases to-date were recorded in the 1960s. from the mid-1960s onwards, brazil underwent a rapid and disorganized settlement process in the amazon and this migrato ...	2010	20433744