Frequência de anticorpos anti-Toxoplasma gondii em suínos abatidos sem inspeção em Belém / Serologic diagnosis of Toxoplasma gondii in swines slaughtered without inspection in Northern Brazil

To survey the occurrence of IgM and IgG anti-T. gondii antibodies in pigs slaughtered without inspection, 110 serum samples from different localities were submitted to indirect hemaglutination test. A frequency of 50.0% (confidence interval 40.7% /.../ 59.3%, 95% significance) of positive sera was detected, with a distribution of frequency of 1.83% and 1.83%, 6.36% and 15.45%, 20.0% and 25.4%, 17.3% and 7.3%, and 4.5% and 0.0% for IgM and IgG antibodies, respectively in 1:16, 1:64, 1:256, 1:1024, and 1:2048 serum dilutions. The toxoplasmic infection was present among pigs in the city of Belém.(AU)

Frequência de anticorpos anti-Toxoplasma gondii em suínos abatidos sem inspeção em Belém / Serologic diagnosis of Toxoplasma gondii in swines slaughtered without inspection in Northern Brazil

To survey the occurrence of IgM and IgG anti-T. gondii antibodies in pigs slaughtered without inspection, 110 serum samples from different localities were submitted to indirect hemaglutination test. A frequency of 50.0% (confidence interval 40.7% /.../ 59.3%, 95% significance) of positive sera was detected, with a distribution of frequency of 1.83% and 1.83%, 6.36% and 15.45%, 20.0% and 25.4%, 17.3% and 7.3%, and 4.5% and 0.0% for IgM and IgG antibodies, respectively in 1:16, 1:64, 1:256, 1:1024, and 1:2048 serum dilutions. The toxoplasmic infection was present among pigs in the city of Belém.

Prevalência de anticorpos para Toxoplasma gondii em emas (Rhea americana) em diferentes criatórios do Estado do Rio Grande do Sul / Toxoplasma gondii antibodies prevalence in Rhea americana from several farms of Rio Grande do Sul State

Neste trabalho foram analisados 74 amostras de soro de emas provenientes de dez criatórios diferentes localizados no Estado do Rio Grande do Sul. O exame sorológico realizado foi hemaglutinação indireta, de acordo com as normas preconizadas pelo fabricante do Kit utilizado, para detecção e quantificação de anticorpos contra Toxoplasma gondii. A titulação mínima considerada foi a diluição maior ou igual a 1/8. A análise dos resultados demonstrou que uma pequena quantidade (8,10 por cento) destes animais estava infectada pelo parasita, no entanto 40 por cento das propriedades onde as amostras foram obtidas apresentaram animais reagentes. Esses resultados salientam a importância de um estudo mais aprofundado sobre a susceptibilidade imunológica destas ratitas ao agente da toxoplasmose. (AU)

In this work we analyzed 74 (seventy-four) samples of rhea serum from ten different breeders located in the state of Rio Grande do Sul. The serologic exam accomplished was indirect hemaglutination test, in agreement with the norms extolled by the manufacturer of the used Kit, for detection and quantification of antibodies against Toxoplasma gondii. The considered minimum titration was the larger dilution or same to the 1/8 (one-eight). The analysis of the results demonstrated that a small amount (8,10%) of these animals were infected with the parasite, however 40% of the properties where the samples were obtained presented reacting animals. Those results point out the importance of a study more deepened on the immunological susceptibility of these ratites to the agent of the toxoplasmosis. (AU)