RESUMO
The study was conducted to determine the seroprevalence of anti-Toxoplasma gondii and anti-Neospora caninum antibodies in goats, sheep, dogs and cats from two distinct regions in the semi-arid region of Northeastern Brazil: Serra das Confusões National Park (SCNP), a preserved area; and municipality of Petrolina, a non-preserved area. Overall, by the indirect fluorescent antibody test (IFAT), the prevalence for IgG anti-T. gondii antibodies in goats was 5.1% (19/376) and 2.4% (9/376); in sheep, it was 10.2% (34/332) and 14.2% (47/332); in dogs, it was 19.7% (25/127) and 3.9% (5/127) and, in cats, it was 25.7% (9/35) and 5.7% (5/35), for T. gondii and N. caninum, respectively. For T. gondii infection, the risk factors associated with the seroprevalence was gender (female) and study area (Petrolina) for goats and only the study area (Petrolina) for dogs; and for N. caninum infection the risk factors were the age (six months to one year) and the study area (Petrolina) for sheep. The circulation of T. gondii and N. caninum was observed in both areas, with significative risk factors demonstrated of a degraded environment.
