| toxoplasmosis among the ticuna indians in the state of amazonas, brazil. | results of a serologic survey for toxoplasma gondii among 408 ticuna indians from five villages in western brazil are presented and compared with the results of 61 non-indian inhabitants of the town of codajas, amazonas. indirect hemagglutination antibody titers greater than or equal to 64 were found in 39% of the ticuna population as compared to 77% of the codajas population. prevalence rates of titers greater than or equal to 256 were 20.3% for ticunas and 39.3% for codajas. prevalence rates o ... | 1978 | 734754 |
| [prevalence of toxoplasma gondii infection in domestic and wild animals, and human groups of the amazonas region]. | | 1980 | 7231162 |
| characterization of toxoplasma gondii isolates in free-range chickens from amazon, brazil. | the prevalence of toxoplasma gondii in free-ranging chickens is a good indicator of the prevalence of t. gondii oocysts in the soil because chickens feed from the ground. the prevalence of t. gondii in 50 free-range chickens (gallus domesticus) from amazon, brazil, was determined. antibodies to t. gondii were assayed by the modified agglutination test (mat) and found in 33 (66%) chickens with titers of 1:5 in 3, 1:10 in 2, 1:20 in 1, 1:40 in 1, 1:80 in 2, 1:160 in 5, 1:200 in 9, 1:400 in 5, 1:80 ... | 2006 | 16629312 |
| seroprevalence of toxoplasma gondii antibodies in humans from rural western amazon, brazil. | antibodies to toxoplasma gondii were assayed in sera of 266 humans from 71 farms located at rondônia state, western amazon, brazil, by the modified agglutination test (mat) and the indirect immunofluorescent antibody test (ifat). antibodies were found in 195 humans (73.3%), with mat titers of 1:25 in 11, 1:50 in 11, 1:100 in 16, 1:200 in 27, 1:400 in 38, 1:800 in 37, 1:1,600 in 22, and 1:3,200 or higher in 33. from the 71 farms visited, 69 had seropositive humans. prevalence of anti-t. gondii an ... | 2006 | 16884015 |
| seroprevalence of toxoplasma gondii antibodies in cats and pigs from rural western amazon, brazil. | antibodies to toxoplasma gondii were assayed in sera of 63 cats and 80 pigs from 71 farms located at rondônia state, western amazon, brazil, by the modified agglutination test (mat) and the indirect immunofluorescent antibody test (ifat). antibodies (mat > or = 1: 25) were found in 55 of 63 cats (87.3%) with titers of 1:25 in 2, 1:50 in 2, 1:100 in 7, 1:200 in 1, 1:400 in 2, 1:800 in 9, 1:1,600 in 6, and 1:3,200 or higher in 26 cats. by ifat, antibodies were found in 55 cats (87.3%) with titers ... | 2006 | 16995406 |
| seroprevalence of toxoplasma gondii infection among indian people living in iauareté, são gabriel da cachoeira, amazonas, brazil. | the goal of this survey was to estimate the seroprevalence of toxoplasma gondii infection in iauareté, a multiethnic indian community in the upper rio negro basin. we carried out a cross-sectional survey (n = 260), in order to obtain serum samples and demographic data. the sample was randomly selected, by family conglomerate analysis. serodiagnosis was performed by an enzyme-linked immunosorbent assay and indirect immunofluorescence. prevalence of reactivity was 73.5% (191/260), being higher in ... | 2008 | 18327482 |
| occurrence of antibodies anti-neospora caninum, anti-toxoplasma gondii, and anti-leishmania chagasi in serum of dogs from pará state, amazon, brazil. | a cross-sectional study was conducted to determine the occurrence of anti-toxoplasma gondii, anti-neospora caninum, and anti- leishmania chagasi antibodies in dogs of the state of pará, brazil. for this purpose, 129 blood samples were collected from dogs of different ages and gender. samples of 72 dogs were collected from 39 rural properties from 19 municipalities, and 57 samples were from stray dogs, collected after captivity by the center of zoonosis control from the municipality of santarém. ... | 2010 | 20445991 |
| seroprevalence of toxoplasma gondii in free-living amazon river dolphins (inia geoffrensis) from central amazon, brazil. | toxoplasma gondii is an important pathogen in aquatic mammals and its presence in these animals may indicate the water contamination of aquatic environment by oocysts. serum samples from 95 free-living amazon river dolphins (inia geoffrensis) from the mamirauá sustainable development reserve (rdsm), tefé, amazonas, central amazon, brazil were tested for t. gondii antibodies using the modified agglutination test (mat). antibodies (mat=25) to t. gondii were found in 82 (86.3%) dolphins with titers ... | 2011 | 21764516 |
| serosurvey of smooth brucella, leptospira spp. and toxoplasma gondii in free-ranging jaguars (panthera onca) and domestic animals from brazil. | this study investigated the exposure of jaguar populations and domestic animals to smooth brucella, leptospira spp. and toxoplasma gondii in the cerrado, pantanal and amazon biomes of brazil. between february 2000 and january 2010, serum samples from 31 jaguars (panthera onca), 1,245 cattle (bos taurus), 168 domestic dogs (canis lupus familiaris) and 29 domestic cats (felis catus) were collected and analysed by rose bengal test for smooth brucella, microscopic agglutination test for leptospira s ... | 2015 | 26605787 |
| prevalence of anti- neospora caninum and anti- toxoplasma gondii antibodies in dogs from two different indigenous communities in the brazilian amazon region. | prevalence of toxoplasma gondii and neospora caninum antibodies in sera of 325 dogs in 11 villages inhabited by the tapirapé and karajá ethnic groups in the south of the brazilian amazon was determined by the use of an indirect fluorescence antibody test. antibodies (cutoff 1:16) to t. gondii were found in 169 (52%) and to n. caninum (cut-off 1:50) in 32 (9.8%) of 325 dogs. seropositivity for both parasitic infections was widely prevalent in dogs from these villages and was higher in older dogs, ... | 2012 | 22551468 |
| epidemiological aspects of toxoplasma gondii infection in riverside communities in the southern brazilian amazon. | toxoplasma gondii infection is widely prevalent in humans and other animals worldwide. information on the prevalence of t. gondii infection is scarce in some regions of brazil, including riverside communities along the amazon river basin. | 2015 | 26108008 |
| occurrence of antibodies to toxoplasma gondii and lepstospira spp. in manatees (trichechus inunguis) of the brazilian amazon. | the presence of toxoplasma gondii and leptospira spp. antibodies was investigated in 74 manatees (trichechus inunguis [mammalia: sirenia]) kept in captivity in two rescue units in the northern region of brazil. antibodies to t. gondii were detected in 29 (39.2%) of 74 animals by using the modified agglutination test (titer, 1:25). for antibodies against leptospira spp., sera were diluted 1:50 and tested against 24 strains ofleptospires by microscopic agglutination microtechnique, and positive sa ... | 2012 | 22448513 |
| anti-toxoplasma gondii antibodies in beef cattle slaughtered in the metropolitan region of belém, brazilian amazon. | the relevance of consuming raw or undercooked beef in the transmission of toxoplasmosis is unclear due to the high resistance of cattle to infection. however, this possibility needs to be considered in endemic areas, such as the amazon, where the consumption of beef is frequent. the objective of this study was to determine the frequency of anti-toxoplasma gondii igg antibodies in beef cattle slaughtered in the metropolitan region of belem, pará state, brazil. blood samples were collected from 50 ... | 2017 | 28746450 |