A survey of Neospora caninum and Toxoplasma gondii infection in urban rodents from Brazil.

Toxoplasma gondii is a protozoan parasite that infects humans and other warm-blooded animals; it uses feral and domestic cats as the definitive hosts. Neospora caninum is a protozoan parasite of animals whose life cycle is very similar to T. gondii but uses canids as definitive hosts.

Seroprevalence of toxoplasmosis in a low-income community in the São Paulo municipality, SP, Brazil.

Toxoplasmosis is one of the most common zoonoses worldwide. The seroprevalence for T. gondii in human population from Brazil might range from 40 to 80%.

Epidemiological aspects of Visceral Larva Migrans in children living at São Remo Community, São Paulo (SP), Brazil.

In preparation for a study of risk factors for Visceral Larva Migrans of children living in São Remo Community, São Paulo (SP), Brazil, fecal samples were collected from 41 dogs younger than one year of age, 338 serum samples from children ages 1-15 years and 37 soil samples, during March-June 2001. Fecal and soil samples were examined for the presence of Toxocara spp. eggs and serum samples were evaluated by ELISA for antibodies to Toxocara canis.