Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| insect repellents: an overview. | the optimal management of arthropod bites is prevention, and many over-the-counter insect repellents are available. since first marketed in 1956, deet has remained the most effective repellent against mosquitoes, biting fleas, gnats, and chiggers. permethrin is applied to clothing rather than to skin, and it is a better repellent against ticks than deet. the risk of serious side effects with the use of deet is slight; nevertheless, the lowest effective concentration should be used. the current, ... | 1997 | 9039177 |
| characterization of orientia tsutsugamushi isolated in taiwan by immunofluorescence and restriction fragment length polymorphism analyses. | a total of 10 strains of orientia tsutsugamushi were isolated from field rodents and chiggers in taiwan, and characterized by immunofluorescence analysis with monoclonal antibodies and by restriction fragment length polymorphism analysis of the 56-kilodalton (kda) protein gene. the isolates were divided into two groups consisting of 1 and 9 strains which showed some relation to gilliam and karp type strains, respectively. however, all these isolates possessed characteristics distinct not only fr ... | 1997 | 9170266 |
| ectoparasite fauna of the eastern woodrat, neotoma floridana: composition, origin, and comparison with ectoparasite faunas of western woodrat species. | we collected ectoparasites from eastern woodrats, neotoma floridana, from 3 sites in the southeastern united states: coastal south carolina, southeast georgia, and south-central georgia. twelve ectoparasite species were recovered from 47 woodrats in south carolina (5 ticks, 5 mites, 2 fleas), 13 from 35 woodrats in south-central georgia (1 tick, 10 mites, 2 fleas), and 4 from a small host sample (7) in southeast georgia (2 ticks, 1 mite, 1 flea). new state records are established for the listrop ... | 1997 | 9194815 |
| dermatitis in young florida sandhill cranes (grus canadensis pratensis) due to infestation by the chigger, blankaartia sinnamaryi. | 1997 | 9267428 | |
| the role of leptotrombidium scutellare in the transmission of human diseases. | to investigate the role of leptotrombidium (l.) scutellare in the transmission of hemorrhagic fever with renal syndrome (hfrs) and tsutsugamushi disease of autumn-type. | 1996 | 9275333 |
| geographical distribution of vectors and sero-strains of tsutsugamushi disease at mid-south inland of korea. | studies of geographical distributions and relative population densities of the vector mites of tsutsugamushi disease were carried out in october 1996 at 12 locations of the mid-south inland of the korean peninsula, where chigger mites have been never studied. of 177 field rodents and insectivores collected, 154 (87.0%) were apodemus agrarius. total 25,707 chigger mites were collected and 14 species were identified, of which leptotrombidium pallidum was predominant (79.8%) and l. palpale the next ... | 1997 | 9335182 |
| u.s. army soldiers' perceptions of arthropod pests and their effects on military missions. | a survey was conducted to determine the effects of biting and stinging arthropods on military personnel, operations, and training. nearly 70% of respondents reported experiencing problems attributable to arthropods. arthropods obstructed movement and field position, prevented concealment and cover, disrupted maneuvers, and caused panic. twenty percent of respondents reported attendance at sick call for treatment of bites or stings, and 4% were hospitalized or assigned to quarters. median lost ti ... | 1997 | 9433086 |
| [the hydrachnidae water mites of southwestern siberia in relation to their participation in arbovirus circulation]. | the phenomenon of hydrachnidae association with the tick-borne encephalitic viruses complex has been found out during the study of the role of the hydrachnidae in the arboviruses circulation. we investigated the fauna, studied the quantity variation and trophic relations of these arthropods and blood-sucking diptera. it was revealed no trophic relations between blood-sucking diptera and mite species, where tbe strains were isolated from. on the basis of faunistic and virological study we suppose ... | 2007 | 9479384 |
| [new data on fauna and systematics chiggers of the autumnalis group (trombiculidae: neotrombicula)]. | the study of the species group autumnalis in genus neotrombicula is carried out. composition of the group and diagnoses of species are changed, data on variability are reported. a new species, n. oculata sp. n., is described. the new species is similar to n. turkestanica kudryashova, 1993 and differs from it by disproportionaly large eyes, a little more numerous setae of idiosoma (ndv = 66-78 against 58-69) and their lesser lengths (dm = 41-46 against 45-49), a lesser width of scutum (aw = 71 ag ... | 2007 | 9541936 |
| the summer penile syndrome: seasonal acute hypersensitivity reaction caused by chigger bites on the penis. | to describe the seasonal acute hypersensitivity reaction of the penis due to chigger bites, known as the summer penile syndrome. | 1998 | 9583392 |
| tungiasis among five communities in south-western trinidad, west indies. | the prevalences of tunga penetrans linn. within the five townships of granville, fullerton, icacos, coromandel and cedros in south-western trinidad, west indies, as determined by physical examination of all inhabitants present during the survey, were 17.0% (38/223 subjects), 15.7% (36/237), 31.4% (102/325), 17.4% (42/242) and 17.9% (50/280), respectively. the rate in icacos was significantly higher than in the other four sites (p < 0.001). not only were males more likely to be infected than fema ... | 1998 | 9614460 |
| bites and stings of the arthropod kind. treating reactions that can range from annoying to menacing. | bites and stings from arthropods are largely inevitable because of the number of offending species and their distribution throughout our environment. wasps, bees, ants, mosquitoes, gnats, chiggers, and fleas are found all across the united states. thus far, africanized honeybees are limited to southwestern states and fire ants to southern states. brown recluse spiders are found most often in the midwest and south central region, but the black widow spider is found in all 48 contiguous states. th ... | 1998 | 9633544 |
| a new ecology for scrub typhus associated with a focus of antibiotic resistance in rice farmers in thailand. | following the documentation of chloramphenicol-resistant and doxycycline-resistant strains of orientia tsutsugamushi (hyashi) in northern thailand, we conducted ecological and epidemiological studies near the houses of patients hospitalized with antibiotic-resistant infections. new associations between chiggers, rodents, and o. tsutsugamushi in active rice agriculture areas, an ecological habitat not described previously, are reported. rattus rattus (l.) was the most common species (representing ... | 1998 | 9701943 |
| immunocytochemical methods to study the distribution of orientia tsutsugamushi in leptotrombidium (acari: trombiculidae) chiggers. | immunocytochemical methods were developed and tested for their ability to detect the distribution of orientia tsutsugamushi in paraffin sections of adult chiggers (leptotrombidium imphalum vercammen-grandjean & langston). rickettsial antigen was detected by application of a simple direct or amplified immunocytochemistry procedure and an indirect immunofluorescent procedure. in the direct procedure alkaline phosphatase conjugation to the mouse polyclonal antibody to the karp strain was followed b ... | 1998 | 9701944 |
| two new species of chiggers (acari: trombiculidae and leeuwenhoekiidae) from iran. | odontacarus khanjani goff & saboori (leeuwenhoekiidae) and neotrombicula iranensis goff & saboori (trombiculidae) were described as new. both species were collected as unengorged larvae on alfalfa plants, medicago sativa, in western iran. | 1998 | 9775621 |
| deployed us army soldiers' knowledge and use of personal protection measures to prevent arthropod-related casualties. | the recommendation to use personal protection measures (ppms) to prevent arthropod-related diseases and nuisance bites is a common element of travel medicine consultation.1-3 prevention of arthropod-related casualties is especially important to the military, given the often intense exposure of service members to biting arthropods and the threat of personnel losses to mission success. in the 1980s, 75% deet (n,n-diethyl-m-toluamide) was the us military-issue insect repellent for use on skin and c ... | 1998 | 9876199 |
| occurrence of orientia tsutsugamushi in chiggers (acari: trombiculidae) and small animals in an orchard near bangkok, thailand. | the ecology of orientia tsutsugamushi (hayashi) was studied in chiggers and small animals in an orchard near bangkok, thailand. small animals were trapped monthly between july and november 1992 and examined for the presence of o. tsutsugamushi and ectoparasitic chiggers. a total of 40 rattus rattus (l.) and 16 tupaia glis (diard) was trapped. o. tsutsugamushi was isolated from liver and spleen samples of 30.8% of r. rattus and 18.6% of t. glis. antibodies to o. tsutsugamushi were detected in 95% ... | 1999 | 10467771 |
| an unusual site of chigger bite in a patient with scrub typhus. | a 70-year-old female farmer was admitted to the hospital because of fever, headache, and diarrhea for 7 days. hypotension, right-sided pleural effusion with respiratory distress and leukocytosis were noted. she was initially treated as systemic bacterial infection by i.v. administration of ampicillin/sulbactam and amikacin. because fever persisted in spite of aggressive treatment, a repeat thorough physical examination was done. an eschar was found over the left-sided labium majus and an enlarge ... | 1999 | 10579097 |
| seasonal occurrence of leptotrombidium deliense (acari: trombiculidae) attached to sentinel rodents in an orchard near bangkok, thailand. | leptotrombidium deliense walch that attached to sentinel laboratory mice and the roof rat, rattus rattus (l.), placed in an orchard habitat near bangkok, thailand, were studied between april 1993 and april 1995. a single l. deliense larva was attached to only 1 of 51 laboratory mice placed in the study area between april and september 1993. overall, 89/202 (44.1%) r. rattus had 1 or more l. deliense larvae attached, and orientia tsutsugamushi (hayashi), the etiologic agent for scrub typhus, was ... | 1999 | 10593093 |
| a walk in the woods with tunga penetrans. | 1999 | 10731363 | |
| [a revision of chiggers in the vulgaris group (trombiculidae: neotrombicula)]. | a revision of chigger mites species, being closely related to neotrombicula vulgaris (schluger, 1955), is given. 2 new species are described: n. aideriensis sp. n. from western kopetdagh and n. macrovulgaris sp. n. from western caucasus. n. aideriensis sp. n. differs from all other species of the vulgaris group by presence of single barb on the lateral seta of palpal tibia in most specimens. this species differs also from n. vulgaris by lesser width of scutum, shorter setae of scutum and idiosom ... | 1999 | 10771778 |
| cutaneous infestation by tunga penetrans. | 2000 | 10809982 | |
| tungiasis in a 3-year-old child. | tungiasis is an infestation of the skin caused by the flea tunga penetrans. it is not rare in western europe because of tourism to tropical and subtropical countries. however, tungiasis has been very rarely reported in children. we describe a case of tungiasis in a 3-year-old child. the infestation was localized to the second toe of the left foot and was characterized by an atypical clinical presentation. | 2000 | 10990579 |
| ectoparasites and gastrointestinal helminths of southern flying squirrels in southeast georgia. | southern flying squirrels (glaucomys volans) from southeastern georgia were examined for ectoparasites and gastrointestinal helminths. ten species of ectoparasites were recovered, including 3 species of sucking lice (hoplopleura trispinosa, microphthirus uncinatus, and neohaematopinus sciuropteri), 1 species of flea (orchopeas howardi), 2 species of ticks (amblyomma maculatum and ixodes scapularis), 3 species of mesostigmatid mites (androlaelaps casalis, a. fahrenholzi, and haemogamasus ambulans ... | 2000 | 11128479 |
| evaluation on the occurrence of tsutsugamushi disease in tottori prefecture. | in tottori prefecture, we gathered the data of all patients known to have been infected with tsutsugamushi disease (td) over a span of 49 years, from 1950 to 1998. the total number of patients reported so far has been 19, 16 of which occurred after 1988. recently, it has been observed that the incidence tended to increase. of the 13 laboratory confirmed patients, 7 came from saji village and chizu town, in the yazu district, a place whereby, a body of water known as the sendai river partly passe ... | 2000 | 11138539 |
| health status of northern bobwhite quail (colinus virginianus) in eastern kansas. | the health status of wild northern bobwhite quail (colinus virginianus) from lyon county, kansas, was evaluated by conducting comprehensive health assessments on 25 birds. gross lesions indicative of avian pox, ulcerative enteritis, and quail bronchitis were not present. serologic tests for antibodies to salmonella pullorum, salmonella gallinarum, pasteurella multocida, mycoplasma gallisepticum, mycoplasma synoviae, and avian adenoviruses were all negative. intestinal coccidia (eimeria spp.) wer ... | 2000 | 11195653 |
| rodent ectoparasites from two locations in northwestern florida. | from feb.-apr. 1999, 19 species of ectoparasitic arthropods (2 sucking lice, 4 fleas, 4 ticks, 2 mesostigmatid mites, 5 chiggers, 2 fur mites) were recovered from 106 rodents belonging to 5 species (cotton mouse, peromyscus gossypinus, n = 64; cotton rat, sigmodon hispidus, n = 23; eastern woodrat, neotoma floridana, n = 9; golden mouse, ochrotomys nuttalli, n = 9; eastern gray squirrel, sciurus carolinensis, n = 1) at tall timbers research station, leon county, florida. during the same period, ... | 2000 | 11217221 |
| temporal changes in prevalence of scrub typhus rickettsia (orientia tsutsugamushi) infecting the eggs of leptotrombidium imphalum (acari: trombiculidae). | eggs from seven colony lines of the chigger mite leptotrombidium imphalum (vercammen-grandjean & langston) were examined for infection with orientia tsutsugamushi (hyashi), the etiologic agent of scrub typhus. the polymerase chain reaction (pcr) using primers otp 56.809 and otm 56.1221, which amplify a 291 bp region of the p56 gene of o. tsutsugamushi, was used to detect scrub typhus within single eggs. all seven chigger mite lines produced infected eggs with varying rates of infection (li1 = 8. ... | 2001 | 11268679 |
| detection of orientia tsutsugamushi (rickettsiales: rickettsiaceae) in unengorged chiggers (acari: trombiculidae) from oita prefecture, japan, by nested polymerase chain reaction. | the current study surveyed the 56-kda type-specific antigen (tsa) gene dnas of orientia tsutsugamushi (hayashi) in approximately 4.000 unengorged chiggers obtained from the soil or ground surface in an endemic and a nonendemic area of the tsutsugamushi disease in oita prefecture, southwestern japan, by nested polymerase chain reaction (pcr). serotypes of o. tsutsugamushi were identified by restriction fragment-length polymorphism (rflp) analysis. in the endemic area, 242 pools from five species ... | 2001 | 11296840 |
| tungiasis: a neglected health problem of poor communities. | tungiasis is caused by the flea tunga penetrans. growing urbanization, improved housing and use of appropriate footwear presumably have led to an overall reduction of the occurrence of this ectoparasitosis within the last decades. however, it is still highly prevalent where people live in extreme poverty, occurring in many latin american and african countries. although the infection has long been known, data on the ectoparasite's biology and the epidemiology of the disease are scant. methods for ... | 2001 | 11348517 |
| eradication of ectoparasites in children. how to treat infestations of lice, scabies, and chiggers. | infestations of head lice, body lice, scabies, and chiggers are common causes of rash and pruritus in children. concern has arisen about development of resistance to often-used treatments, but a comprehensive approach to eradication is usually very effective. in this article, dr potts describes the presentation of ectoparasites and discusses conservative treatment and the safe use of pediculicides. | 2001 | 11467042 |
| trombiculiasis in the florida black bear. | we found trombiculid mite (trombiculidae) infestations in 32 of 101 (32%) freeranging florida black bears (ursus americanus floridanus) live-captured or necropsied in florida from january 1999 to april 2000. prevalence of chigger infestation was greatest in june with no infestations seen october to march. chigger infestations were recognized as accumulations of bright orange granular material usually associated with hair shafts. mites were found in clusters of one to 102 (mean +/- sd = 8.5+/-19. ... | 2001 | 11504241 |
| identification of the target cells of orientia tsutsugamushi in human cases of scrub typhus. | orientia tsutsugamushi is the etiologic agent of scrub typhus, a chigger-borne zoonosis that is a highly prevalent, life-threatening illness of greatest public health importance in tropical asia and the islands of the western pacific ocean. the target cell of this bacterium is poorly defined in humans. in this study, o. tsutsugamushi were identified by immunohistochemistry using a rabbit polyclonal antibody raised against o. tsutsugamushi karp strain in paraffin-embedded archived autopsy tissues ... | 2001 | 11504834 |
| epidemiological progresses of hemorrhagic fever with renal syndrome in china. | to summarize the major achievements of chinese work on the epidemiology and prevention of hemorrhagic fever with renal syndrome (hfrs) in recent years, and to give a general review on the present situation of hfrs in china. | 1999 | 11593522 |
| tungiasis in north america: a report of 2 cases in internationally adopted children. | tungiasis is a cutaneous infestation caused by the gravid female sand flea, tunga penetrans. we describe 2 cases of tungiasis that occurred in siblings who recently emigrated as international adoptees from liberia to the united states. both patients had infectious complications as a result of the infestation with t penetrans. | 2001 | 11713458 |
| determination and geographical distribution of orientia tsutsugamushi serotypes in korea by nested polymerase chain reaction. | field rodents and chigger mites were collected at 30 locations in korea in october and november 1997-1999 to determine the serotypes of orientia tsutsugamushi and their geographical distribution. a nested polymerase chain reaction was performed with the spleen tissues from 546 field-striped mice (apodemus agrarius) and 104 pools of chigger mites. the positivity rate of o. tsutsugamushi was 45.6% in a. agrarius and 39.4% in the chigger mite pools. two serotypes, boryong and karp, were found in th ... | 2001 | 11716109 |
| stereochemical effects in an insect repellent. | racemic 1-[3-cyclohexen-1-ylcarbonyl]-2-methylpiperidine repels blood-feeding arthropods such as mosquitoes, chiggers, and ticks. the compound contains two asymmetric carbon atoms and the racemate consists of four stereoisomers. quantitative mosquito bioassays using aedes aegypti (l.) showed that (1s,2's) and (1r,2's) configurations were 2.8-3.1 and 1.6-1.8 times more effective, respectively, than the other two stereoisomers in reducing mosquito bites. (1s,2's) was 2.5 more repellent than the ra ... | 2001 | 11761378 |
| [experimental study on the roles of gasmid mite and chigger mite in the transmission of hemorrhagic fever with renal syndrome virus]. | to study the roles of gasmid mite and chigger mite in the transmission of hemorrhagic fever with renal syndrome virus (hfrsv). | 2001 | 11769690 |
| [studies on three types of natural foci of tsutsugamushi disease in eastern part of china]. | in order to identify the types of natural foci of tsutsugamushi disease to provide basis for prevention, a series of studies were carried out in fujian, zhejiang and jiangsu provinces. | 2000 | 11860755 |
| [investigation on natural foci of autumn-winter type tsutsugamushi disease in shandong province]. | in order to provide basic data of tsutsugamushi disease in shandong province, for the control and prevention of this disease in residents and army-men. | 2000 | 11860801 |
| [detection and proliferation of hemorrhagic fever virus in chigger mites]. | to study the impact of leptotromhidium scutellaris as a vector in transmission of hemorrhagic fever. | 1999 | 11864463 |
| [new species and sympatric relations of the chigger mite species group talmiensis (trombiculidae, neotrombicula)]. | a revision of chigger mites species being closely related to neotrombicula talmiensis (schluger, 1955) has been performed. 2 new species are described: n. pontica sp. n. from krasnodar territory (western caucasus) and n. sympatrica sp. n. from krasnodar territory, daghestan, tuva, armenia, kirghizia and turkey (rize province). n. pontica sp. n. is closely related to n. carpathica schluger et vysotzkaya, 1970 and differs from this species by the larger number of idiosomal setae (ndv = = 75-99 aga ... | 2001 | 11881135 |
| chronic ulcers and myasis as ports of entry for clostridium tetani. | evaluating tetanus immune status is not yet the usual clinical practice regarding patients with chronic ulcers or myasis. however, of 858 tetanus patients at hospital couto maia (salvador, bahia, brazil) aged 1 year or above, 2 had pressure ulcers and 17 had chronic ulceration of the lower limbs where these skin lesions were the ports of entry for clostridium tetani. in these 19 cases, the following predisposing factors were described: venous insufficiency (n=6), sickle cell anemia (n=2), hansen ... | 2003 | 11980594 |
| typical histologic features of tunga penetrans in skin biopsies. | tunga penetrans is a flea that burrows into human skin, causing the disease tungiasis. although the parasite is not endemic in the united states, patients may present with this disease upon returning from tropical locales. histologic sections contain a variety of flea parts that may present a diagnostic dilemma for pathologists unfamiliar with this disease. | 2002 | 12033962 |
| efficiency of leptotrombidium chiggers (acari: trombiculidae) at transmitting orientia tsutsugamushi to laboratory mice. | thirteen different laboratory colonies of leptotrombidim chiggers [l. chiangraiensis tanskul & linthicum, l. deliense walch and l. imphalum (vercammen-grandjean &langston)] were evaluated for their ability to transmit orientia tsutsugamushi (hyashi) to mice. of 4,372 transmission attempts using individual chiggers from all 13 colonies, 75% (n = 3,275) successfully infected mice. transmission rates for the individual chigger colonies ranged from 7 to 80%. increasing the number of chiggers that fe ... | 2002 | 12061450 |
| acari ectoparasites of bats from minas gerais, brazil. | ectoparasites were recovered from brazilian bats captured from april to november 1997 at or near parque estadual do rio doce, state of minas gerais, southeastern brazil. sixty bats were collected, representing three families and 13 species. five acari families were recorded: myobiidae, trombiculidae, labidocarpidae, macronyssidae, and spinturnicidae. the macronyssid radfordiella desmodi radovsky (71 specimens) and the spinturnicid periglichrus iheringi oudemans (45 specimens) were the most abund ... | 2002 | 12061455 |
| bacterial superinfection in human tungiasis. | tungiasis is caused by penetration of the female sand flea tunga penetrans into the epidermis of its host. it is endemic in many countries in latin america, the caribbean and sub-saharan africa. although superinfection is a common clinical observation, the frequency and the pattern of bacterial pathogens associated with tungiasis have never been investigated systematically. we conducted a prospective clinico-bacteriological study with patients living in a shantytown in fortaleza, capital of cear ... | 2002 | 12100437 |
| high prevalence of tungiasis in a poor neighbourhood in fortaleza, northeast brazil. | tungiasis has been reported to occur in many latin american, caribbean and african countries. however, epidemiological data are still very scanty and do not exist at all for brazil. to fill this gap, a cross-sectional study has been undertaken in a shantytown (favela) in fortaleza, ceará state, northeast brazil. all 327 households of a circumscribed sub-area were visited, and 1185 out of the 1460 household members were thoroughly examined for the presence of tungiasis. thirty-four% (95% ci: 30.9 ... | 2002 | 12204399 |
| ectopic localization of tungiasis. | tungiasis is caused by the penetration of the female sand flea tunga penetrans into the epidermis. it is generally assumed that lesions are confined to the feet. to determine to what degree tungiasis occurs at other topographic sites, 1,184 inhabitants of a poor neighborhood in northeastern brazil were examined; 33.6% were found to have tungiasis (95% confidence interval = 30.9-36.4%). six percent presented lesions at locations other than the feet, with the hands being the most common ectopic si ... | 2002 | 12389950 |
| [distribution of hemorrhagic fever with renal syndrome virus in gamasid mites and chigger mites]. | to study the distribution of hemorrhagic fever with renal syndrome virus (hfrsv) in mites. | 2002 | 12411201 |
| [morphological variablility in the chigger mite species neotrombicula sympatrica (acariformes: trombiculidae) from kyrgyzstan]. | aberrations (quantitative chaetotactic deviations, i.e. decreasing or increasing of setae numbers and variations in arrangement of setae) and anomalies (qualitative chaetotactic deviations, for example, partial reduction of scutum, shortening of a seta more than 1.5-2 times, merging of setae) were recorded for 13 taxonomically important morphological structures in the chigger mite species neotrombicula sympatrica stekolnikov, 2001. 3308 specimens were studied as a total. 17.2% of them had variou ... | 2002 | 12481606 |
| [proliferation and location of hantaan virus in gamasid mites and chigger mites, a molecular biological study]. | to study the proliferation and location of hantaan virus (hv) in gamasid mites and chigger mites and the significance of gamasid mites and chigger mites as vectors of transmission of hemorrhagic fever with renal syndrome (hfrs). | 2002 | 12509926 |
| development of an in vitro method for the evaluation of candidate repellents against leptotrombidium (acari: trombiculidae) chiggers. | we developed a rapid and economical in vitro procedure with which to evaluate the efficacy of candidate repellents against chiggers. the procedure requires only 5 min and a small number of chiggers to obtain a valid estimate of the median effective dose. we used this procedure to evaluate the repellent activity of 11 compounds against the chigger, leptotrombidium imphalum vercammen-grandjean and langston. median effective doses were determined for 10 of the 11 compounds. dm-165-2 (n,n-diethyl-3- ... | 2003 | 12597654 |
| [structure and seasonal dynamics of the biotic community ectoparasites of the bank vole in the il'men'-volkhov lowland]. | a biodiversity, seasonal dynamics and parasite load of a single individual and local population of the bank vole (clethrionomys glareolus) were studied in coniferous and mixed forests of the ilmen-volkhov lowland (neighborhood of oskuy village, chudovo region, novgorod province) in the period from june 1999 till may 2002. the gero's traps were used for collecting the host. lines of traps stood in each place during 3-5 days and were checked twice a day. trapping of micromammalian hosts and collec ... | 2002 | 12624960 |
| hantavirus transmission: potential role of ectoparasites. | hantavirus pulmonary syndrome is an often-fatal disease thought to be transmitted exclusively by rodents. we report the first evidence of hantavirus-specific rna (bayou) from two trombiculid mites (chiggers) and an ixodid tick parasitizing wild-caught rodents at a field site in texas and also from a trombiculid mite in the free-living predatory stage of the chigger life cycle collected from the same site. | 2001 | 12653138 |
| additional description of a new species of tunga (siphonaptera) from ecuador. | a new species of chigoe flea belonging to the genus tunga jarocki, 1838 (siphonaptera, pulicidae, tunginae), tunga trimamillata, was recently described by pampiglione et al. (2002). a better description and more details of the epidemiology of the flea are now presented. it is a species found in goats, pigs and cattle in santa isabel in andean ecuador. this new species differs from its most similar congener, tunga penetrans (l., 1758), by several features, the most important of which are a) the p ... | 2003 | 12669344 |
| the patterns of tungiasis in araruama township, state of rio de janeiro, brazil. | this paper describes patterns of infestation with tunga penetrans (l., 1758) within the poor community of araruama municipality, state of rio de janeiro, brazil, assessed by the number of persons and domestic animals parasitized. the overall prevalence of infestation was 49.2% (211 parasitized hosts) of the 429 examined. humans (p < 0.01) and dogs (p < 0.01) were the most important hosts with 62.6% and 35.6% respectively. dogs were considered as the potential infestation source to humans. consid ... | 2003 | 12700859 |
| investigations on the biology, epidemiology, pathology and control of tunga penetrans in brazil: i. natural history of tungiasis in man. | tungiasis is an important health problem in poor communities in brazil and is associated with severe morbidity, particularly in children. the causative agent, the female flea tunga penetrans, burrows into the skin of its host, where it develops, produces eggs and eventually dies. from the beginning of the penetration to the elimination of the carcass of the ectoparasite by skin repair mechanisms, the whole process takes 4-6 weeks. the present study is based on specimens from 86 patients, for som ... | 2003 | 12756541 |
| septic shock secondary to scrub typhus: characteristics and complications. | scrub typhus is an acute febrile illness caused by infection with orientia tsutsugamushi transmitted by the bite of larval trombiculid mites (chiggers). a prospective study was conducted in septic shock patients in maharat hospital, nakhon ratchasima province, thailand, from 12 november 2001 to 5 january 2002. of the 51 septic shock patients studied during the 7 week period, 18 (35.3%) were found to have evidence of scrub typhus infection; 3 patients (16.7%) died. in this study, septic shock cau ... | 2002 | 12757226 |
| investigations on the biology, epidemiology, pathology and control of tunga penetrans in brazil. ii. prevalence, parasite load and topographic distribution of lesions in the population of a traditional fishing village. | tungiasis is hyperendemic in many poor communities in brazil and is associated with considerable morbidity. in order to understand the factors that determine the distribution of this ectoparasitosis in a rural community, an epidemiological study was carried out in a traditional fishing village in ceará state, north-eastern brazil. based on active case detection and voluntary participation, 91% of the population (belonging to 95% of all families) was examined. embedded fleas were looked for over ... | 2003 | 12768415 |
| tunga penetrans: molecular identification of wolbachia endobacteria and their recognition by antibodies against proteins of endobacteria from filarial parasites. | in search of wolbachia in human parasites, wolbachia were identified in the sand flea tunga penetrans. pcr and dna sequencing of the bacterial 16s rdna, the ftsz cell division protein, the wolbachia surface protein (wsp) and the wolbachia aspartate aminotransferase genes revealed a high similarity to the respective sequences of endosymbionts of filarial nematodes. using these sequences a phylogenetic tree was generated, that indicates a close relationship between wolbachia from t. penetrans and ... | 2002 | 12856318 |
| scrub typhus: vector competence of leptotrombidium chiangraiensis chiggers and transmission efficacy and isolation of orientia tsutsugamushi. | a total of 4,281 rodents, belonging to 20 species, was collected from three villages in chiangrai province, northern thailand, from january 1994 to december 2001. the predominant species were rattus rattus, r. losea and bandicota indica, accounting for 96% of the total. more than 135,000 chigger mites were removed from wild rodents of which 1% were identified as leptotrombidium chiangraiensis, a new species vector of scrub typhus. five orientia tsutsugamushi-infected l. chiangraiensis colonies e ... | 2003 | 12860596 |
| characterization of orientia tsutsugamushi isolated from wild-caught rodents and chiggers in northern thailand. | we previously reported orientia tsutsugamushi detection from tissue samples (kidney, liver, spleen, and whole blood) of 12 wild-caught rodents from chiangrai province, northern thailand. of the 30 chiggers individually removed from scrub typhus-infected rodents, 2 were found positive for o. tsutsugamushi. we further characterized the o. tsutsugamushi detected from these rodents and chiggers by rflp using three different enzyme digestions. all 14 o. tsutsugamushi samples (12 from tissue samples a ... | 2003 | 12860627 |
| [detection of hantaan virus from gamasid mite and chigger mite by molecular biological methods]. | to study the proliferation and location of hantaan virus (hv) in gamasid mites and chigger mites. | 2003 | 12869987 |
| seroprevalence of rickettsial infection in commensal rodents and shrews trapped in the bangkok metropolitan area. | murine typhus and scrub typhus are important human rickettsial diseases in thailand. small mammals, including many species of rodents and shrews, serve as the reservoir host of rickettsial diseases. rickettsia typhi can be transmitted to humans by fleas causing murine typhus, while infection with orientia tsutsugamushi causing scrub typhus in humans is transmitted by chiggers. the prevalence of rickettsial infection depends on the geographic area. the seroprevalence of antibody to r. typhi and o ... | 2003 | 12924799 |
| stowaways with wings: two case reports on high-flying insects. | more people than ever before are traversing continents, either for business purposes or on holiday. because 3-10 percent of these travelers experience skin, hair, or nail disorders related to these trips there is an increasing likelihood that western physicians will be expected to treat exotic conditions imported from different countries. tungiasis and furunculoid myiasis are two typical disorders of intertropical regions. they represent nuisances induced by the presence of arthropod larvae or e ... | 2003 | 12952757 |
| severe tungiasis in underprivileged communities: case series from brazil. | tungiasis is caused by infestation with the sand flea (tunga penetrans). this ectoparasitosis is endemic in economically depressed communities in south american and african countries. tungiasis is usually considered an entomologic nuisance and does not receive much attention from healthcare professionals. during a study on tungiasis-related disease in an economically depressed area in fortaleza, northeast brazil, we identified 16 persons infested with an extremely high number of parasites. these ... | 2003 | 12967492 |
| [tunga penetrans induced tetanus]. | 1953 | 13037604 | |
| trombicula (trombiculindus) kansai, a new chigger from central honshu, japan. | 1953 | 13053305 | |
| a note on the chiggers of jamaica (acarina: trombiculidae). | 1953 | 13053313 | |
| chiggers in the fuji maneuver area. | 1953 | 13110410 | |
| four new species of harvest mite or chigger and a new furmite (acarina: trombiculidae and listrophoridae). | 1953 | 13111806 | |
| chigger mite infestation. | this article reports on a 45-year-old woman who presented with pruritus and was diagnosed as having chigger mite infestation, a rare condition. the chigger mite larvae were encountered while the patient was traveling in south america. a small erythematous area with a well-circumscribed papule in the sulcus of the second digit of the right foot was incised and drained. follow-up examination showed relief of all symptoms, including pain and pruritus. this unusual case presentation underscores the ... | 2003 | 13130088 |
| a new chigger mite (genus euschöngastia) from the central united states. | 1954 | 13192537 | |
| a new species of chigger mite from colorado (acarina, trombiculidae). | 1955 | 13252502 | |
| shunsennia biplumulosa, a new species of chigger from japan (acarina: trombiculidae). | 1956 | 13320258 | |
| a new species of chigger mite, hannemania hegeneri (acarina; trombiculidae). | 1956 | 13320259 | |
| spermatophores; the mode of insemination of chiggers (acarina: trombiculidae). | 1957 | 13439461 | |
| occurrence of rickettsia tsutsugamushi in korean rodents and chiggers. | 1957 | 13478581 | |
| a review of the reptile chiggers, genus fonsecia (acarina, trombiculidae), with descriptions of two new american species. | 1959 | 13631572 | |
| new records and descriptions of chiggers (acarina: trombiculidae) on bats in alabama. | 1960 | 13804186 | |
| four new chiggers from mexico. | 1962 | 13872818 | |
| early references to the occurrence of tunga penetrans in tropical africa. | 1963 | 13963854 | |
| isolation of pasteurella tularensis from ticks and chiggers parasitized on tularemia-wild hares, with some tularemia transmission experiment. | 1962 | 13986518 | |
| [on the control of chiggers at the east fuji maneuver grounds]. | 1963 | 13995199 | |
| endoparasitic chiggers. i. chiroptera, a new host order for intranasal chiggers, with descriptions of two new genera and species (acarina: trombiculidae). | 1961 | 14009464 | |
| the anatomy of an adult chigger mite blankaartia acuscutellaris (walch). | 1964 | 14165131 | |
| new species of chiggers from rodents in laos (acarina, trombiculidae). | 1964 | 14188827 | |
| relation of tick and chigger infestations to home areas of california meadow mice. | 1964 | 14188828 | |
| four new chiggers from argentina (acarina: trombiculidae). | 1964 | 14215495 | |
| five new species of chiggers from south america (acarina: trombiculidae). | 1964 | 14222872 | |
| five new chiggers from southwestern united states (acarina:trombiculidae). | 1965 | 14259470 | |
| two new schoengastiine chiggers from thailand (acarina: trombiculidae). | 1965 | 14280483 | |
| new bat chiggers from thailand and the solomon islands with notes on the subgenus sasatrombicula vercammengrandjean (acarina: trombiculidae). | 1965 | 14306215 | |
| chiggers and children. | 1960 | 14434919 | |
| parasitic phase of chigger mite, hannemania hegeneri, on experimentally infested amphibians. | 1961 | 14450331 | |
| change in authorship of two chigger species, euschongastia diversa and e. trigenula (acarina, trom-biculidae), with designation of lectotypes. | 1962 | 14466538 | |
| a new species and new records of chiggers (acarina, trombiculidae) from reptiles of southern california. | 1962 | 14488363 | |
| [intraspecific variability and sympatry in closely related chigger mite species of the genus hirsutiella (acari: trombiculidae)]. | intraspecific variability in three closely related chigger mite species of the genus hirsutiella schluger et vysotzkaya, 1970, h. steineri (kepka, 1966), h. llogorensis (daniel, 1960), and h. alpina stekolnikov, 2001 has been studied based on materials collected in caucasus and turkey. it is established that both h. steineri and h. llogorensis include western caucasian and asian forms, the first one being larger than the second one. western caucasian samples of h. steineri are also split into la ... | 2003 | 14515506 |
| chigger mites (acari: trombiculidae) new to the fauna of cuba, with the description of two new species. | two new species of chigger mites, hyponeoculta monocoxalae sp. n. from bats and reptiles, and perares nudosetosus sp. n. from bats, are described. the first finding of larvae of tectumpilosum negreai feider, 1983 in nature is reported from a bat collected at the type locality, and the description of this species is emended. four species, perates monops (brennan et jones, 1960), parasecia manueli (brennan et jones, 1960), beamerella acutascuta brennan, 1958, and blankaartia sinnamaryi (floch et f ... | 2003 | 14560976 |