| occurrence of anti-toxoplasma gondii antibodies in dogs in the urban area of monte negro, rondônia, brazil. | the prevalence of anti-toxoplasma gondii antibodies in dogs in an urban area of the municipality of monte negro, rondônia, brazil, was evaluated using an indirect immunofluorescent antibody test (ifat). blood samples were taken from 157 dogs living in 85 of the 94 blocks of the city. a seropositivity of 76.4% (120/157) was found and associations between the prevalence and the variables sex, age, type of raising and food were studied. the prevalence tended to increase with age (p < 0.05); dogs ov ... | 2004 | 14992241 |
| 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 |
| genetic diversity of toxoplasma gondii isolates from chickens from brazil. | until recently, toxoplasma gondii was considered clonal with very little genetic variability. recent studies indicate that t. gondii isolates from brazil are genetically and biologically different from t. gondii isolates from usa and europe. in the present study, we retyped 151 free range chicken isolates from brazil including 117 newly isolated samples from 11 geographically areas (alagoas, bahia, ceará, maranhão, paraná, pernambuco, rio de janeiro, rio grande do norte, são paulo, sergipe, and ... | 2008 | 18804329 |