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Characterization of the zoonotic potential of Toxoplasma gondii in horses from Rio de Janeiro State.

Venturi, Sabrina S; da Silva, Andressa F; Frazão-Teixeira, Edwards; de Oliveira, Francisco C R; Consalter, Angélica; Padilha, Felipe G F; Fonseca, Ana Beatriz M; Ferreira, Ana M Reis.
Acta Trop; 171: 159-162, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28377222
The aim of this study was to perform a survey on the prevalence of anti-Toxoplasma gondii antibodies in horses from Rio de Janeiro State, Brazil. From 2012 to 2013, a total of 624 blood samples were collected from horses from the eight regions comprising Rio de Janeiro State (Baixadas Litorâneas, Serrana, Norte Fluminense, Noroeste Fluminense, Centro-Sul, Metropolitana, Médio Paraíba, and Costa Verde). All sera samples were tested for anti-T. gondii antibodies by performing the modified agglutination test with a cut-off of 1:25. Positive serology for T. gondii was detected in 22.8% (142/624) of the horses studied. Seropositivity was detected in all regions sampled; furthermore, statistical significance was observed when all locations were compared at once. The Médio Paraíba region had the highest number of positive animals 54.76% (23/42) in the Bonferroni correction among Costa Verde, Centro Sul, Metropolitana, and Serrana (p<0.001). Seropositivity was 39.58% (38/96) in Norte Fluminense, which was the second most prevalent region. The results indicated that the T. gondii parasite is widely distributed in horses in Rio de Janeiro State and represents a risk to public and animal health. These findings emphasize the need to increase control and prevention of this disease in horses.
Selo DaSilva