| seroepidemiology of toxoplasma gondii (apicomplexa) in meat producing animals in costa rica. | a serologic screening for toxoplasma gondii antibodies by igg indirect fluorescent antibodies test (igg-ifat) was carried among 496 swine and 601 cattle serum samples from throughout costa rica, to study the possible role of their meat in the transmission of the parasite. the overall prevalence of antibodies was 34.4% in cattle and 43.8% in swine. no significant differences were found in the antibody prevalence between males and females in both animal groups, which acquire the infection early in ... | 1994 | 7480936 |