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, Rondonia, 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