Publications

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[outbreak of equine influenza caused by influenza virus a/equi 1 in the state of rio de janeiro, brazil]. 1978211560
human, canine and equine leishmaniasis caused by leishmania braziliensis braziliensis in an endemic area in the state of rio de janeiro. 19873507562
epidemiological aspects of equine babesioses in a herd of horses in brazil.epidemiological studies of babesia equi and b. caballi were undertaken in a herd of 120 pastured horses in rio de janeiro, brazil. the area where the horses were held was shown to be highly endemic for both babesia spp., i.e. the prevalence of b. equi antibodies in horses aged 6 months or older ranged from 90.6% to 100% as determined by the immunofluorescence antibody (ifa) test, and the prevalence of b. caballi antibodies as determined by western blot ranged from 59.4% to 65.5%. from the herd, ...19957676590
[identification of food sources of anopheles aquasalis (diptera: culicidae) by precipitin test in the state of rio de janeiro, brazil].anopheles aquasalis has shown local variations in blood-host preference in brazil: it seems to be anthropophilic in the northeast and zoophilic or opportunistic in the amazon and other regions. a study was carried out in guapimirim county, state of rio de janeiro, from may to november 1992, for the purpose of identifying the blood meal source of this anopheline by capillary tube precipitin test. a total of 1,366 females were captured at natural resting-places, 725 of which were blood-fed. the gu ...19969077010
feeding patterns of triatoma vitticeps in the state of rio de janeiro, brazil.feeding patterns of triatomines have contributed to elucidate its biology. triatoma vitticeps, naturally infected with t. cruzi, has been found in domiciles. its behavior and epidemiological patterns were investigated.200010973153
seasonal analysis of the number of aeropiles in anocentor nitens (neumann, 1897) (acari: ixodidae) from the state of rio de janeiro, brazil.variation between aeropile numbers of the right and left peritrematic plate in male and female anocentor nitens (neumann, 1897) is reported from a site in brazil. from january to december 1998, 146 males and 247 females of a. nitens were recovered from equus caballus l. in silva jardim district, state of rio de janeiro. asymmetry of numbers of aeropiles between right and left plates occurred in 83.6% of the males and 82.2% of the females. differences in the number of aeropiles between the sexes ...200111500781
seasonal dynamics of ticks (acari: ixodidae) on horses in the state of são paulo, brazil.natural tick infestations were assessed every 14 days on horses over a 2-year period. amblyomma cajennense adult ticks were counted individually, without detachment from the horses. larvae and nymphs of a. cajennense were collected using a rubber scraper that scratched engorged immature ticks from the host. adult females of anocentor nitens larger than 4mm length were counted on the horses. blood samples were also obtained from the horses every 14 days and macroclimatic data were obtained for th ...200211879967
structure of the community of the strongylidae nematodes in the dorsal colon of equus caballus from rio de janeiro state--brazil.the structure of the community of strongylidae nematodes in the dorsal colon of naturally infected horses from the metropolitan region of rio de janeiro state was evaluated in 33 samples. twenty-three species were found: cylicostephanus longibursatus, cylicostephanus goldi, cylicocyclus nassatus and cyathostomum tetracanthum were the central ones; cylicostephanus minutus, cylicostephanus calicatus, cylicocyclus leptostomus, cylicodontophorus bicoronatus and parapoteriostomum euproctus were secon ...200312581589
fungal flora of normal eyes of healthy horses from the state of rio de janeiro, brazil.the conjunctival fungal flora of 32 adult horses with normal eyes (n = 64) from the state of rio de janeiro in brazil was identified in the fall of 2000 using horses of different breeds, both genders and aged 5-19 years old. the culture samples were taken from the conjunctival sac of both eyes with a sterile cotton swab wetted with saline solution, seeded in sabouraud's dextrose agar with chloramphenicol, and incubated for 5 days at an average temperature of 25 degrees c. the number of fungal co ...200312641843
diversity of the infracommunities of strongylid nematodes in the ventral colon of equus caballus from rio de janeiro state, brazil.nematodes from the ventral colon of 31 adult horses, 24 males and 9 females, in the metropolitan region of the state of rio de janeiro were analysed. there were 53,444 (86.4%) adults of the total recovered strongylid nematodes. they belonged to 21 species of cyathostominae and seven of strongylinae. larval forms made up 13.6% (8407) of the total recovered, and 49% of the strongylid nematodes were observed in ventral colon. the most prevalent and abundant species were cyathostomum tetracanthum, c ...200616406328
studies on the feeding habits of lutzomyia (n.) intermedia (diptera, psychodidae), vector of cutaneous leishmaniasis in brazil.the precipitin test was applied to identify the blood meal sources of lutzomyia intermedia, collected in two distinct habitats: inside houses and in the peridomicile, in mesquita, rio de janeiro state, brazil, a transmission area of leishmania (v.) braziliensis. the following antisera were tested: human, avian, equine, rodent, and opossum. from a total of 370 females analyzed, 128 specimens from the domicile and 59 from the peridomicile reacted with specific antisera. the anthropophily of l. int ...200616410867
feeding patterns of haemagogus capricornii and haemagogus leucocelaenus (diptera: culicidae) in two brazilian states (rio de janeiro and goiás).we present the identification of bloodfeeding sources of haemagogus (haemagogus) capricornii lutz and haemagogus (conopostegus) leucocelaenus (dyar & shannon) (diptera: culicidae) from different regions of brazil, as analyzed by precipitin tests. anti-sera for bird, bovine, equine, human, opossum, and rodent were used. two hundred one mosquitoes were examined (147 hg. leucocelaenus and 54 hg. capricornii), of which 177 reacted for some anti-serum. for hg. leucocelaenus, 86 (68.3%) reacted to one ...200818826029
natural infection by cryptosporidium sp., giardia sp. and eimeria leuckarti in three groups of equines with different handlings in rio de janeiro, brazil.to detect cryptosporidium sp., giardia sp. and eimeria leuckarti in horses, fecal samples were collected from three different handling horse groups from the state of rio de janeiro, brazil. group a was composed of "mangalarga marchador" pure breed horses, group b was formed by horses of a military corporation and group c by stray horses captured by the center of zoonosis control paulo dacorso filho. a total of 396 fecal samples were collected, 212 samples from group a, 154 samples from group b a ...200919117684
[molecular diagnostic of congenital babesiosis in neonates foals from state of rio de janeiro, brazil].the aim of this study was to demonstrate, through nested pcr (npcr) method, the occurrence of congenital babesiosis in two foals born of carrier mares. all mares were positive for t. equi based in visualization of intraerytrocytic parasites in blood smears, in indirect fluorescent antibody test (ifat) and npcr reactions. just one mare was npcr-positive for b. caballi. after the birth, all foals presented npcr-positive for t. equi, while just one foal presented npcr-positive for b. caballi. the p ...200820059877
seasonal dynamics of cyathostomin (nematoda - cyathostominae) infective larvae in brachiaria humidicola grass in tropical southeast brazil.the ecology of cyathostomin larvae was evaluated in different seasons, from july 2007 to june 2008, in the municipality of seropédica, rio de janeiro state, southeastern brazil. samples of feces and grass were collected every 15 days at 8 am and 5 pm and the infective larvae were recovered by the baermann technique. leaves of the grass brachiaria humidicola were cut to 20cm, which is the length containing most of the larvae. the highest number of larvae was recorded at 8 am the winter (8300l(3)k ...201121489693
factors associated to theileria equi in equids of two microregions from rio de janeiro, brazil.serum samples from 714 equids of itaguaí and serrana microregions, rio de janeiro, southeastern brazil, were examined by indirect fluorescent antibody test (titer 1:80) for theileria equi. the prevalence in the microregions and factors associated with seropositivity were evaluated and the prevalence ratio (pr) calculated. the overall prevalence of t. equi infection was 81.09% (n = 579), with higher prevalence (p < 0.05) in the itaguaí (85.43%) when compared to serrana microregion (76.92%). the g ...201121961755
[urban elites and the horse-racing world in the city of rio de janeiro, 1848-1932]. 199922220338
cutaneous leishmaniasis is frequent in equines from an endemic area in rio de janeiro, brazil.in an endemic area of cutaneous leishmaniasis in rio de janeiro state where a mule had been found infected, a systematic search among equines was performed, resulting in the detection of leishmania parasites in skin lesions of 30.8% of the animals, which included horses and mules. the eventual role of equines in the epidemiology of the human disease is being investigated.19863613980
[cutaneous leishmaniasis in a mule (equus caballus x equus asinus) in an endemic area of the state of rio de janeiro]. 19863587005
an outbreak of american cutaneous leishmaniasis (leishmania braziliensis braziliensis) in a periurban area of rio de janeiro city, brazil: clinical and epidemiological studies.from july 1984 to september 1986, 105 cases of american cutaneous leishmaniasis were studied in a locality closely situated to an urbanized area of the city of rio de janeiro, brazil. settlement in this area was established at least 20 years ago but the first cases were noted six months prior to the beginning of this study. cases were almost exclusively cutaneous and ulcerated, with one to six months of evolution. montenegro's skin tests were positive in all cases and anti-leishmania antibodies ...19883271941
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