Abstract
ABSTRACT. Stelmann U.J.P., Silva R.C., Langoni H., Borges A.S. & Amorim R.M. [Antibodies against Toxoplasma gondii in horses with history of ataxia]. Anticorpos contra Toxoplasma gondii em equinos com histórico de ataxia. Revista Brasileira de Medicina Veterinária, 32(4):200-202, 2011. Programa de Pós-Graduação em Medicina Veterinária, Departamento de Clínica Veterinária, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista Júlio de Mesquita Filho, Campus de Botucatu, Distrito de Rubião Júnior, s/n, Botucatu, SP 18618-970, Brasil. E-mail: stelmann.ppgctia@gmail.com The frequency of antibodies in blood serum and cerebrospinal fluid against Toxoplasma gondii in horses with a history of ataxia from the state of Sao Paulo, Brazil was carried out. Modified agglutination test was used to determine antibodies against T. gondii, considering as positive samples with titers ≥ 2. Of the blood samples tested, only 8 of 23 (34.78%) were positive, while CSF samples were negative when used the same technique. According to the negative results obtained for CSF, we concluded that T. gondii was not the etiological agent of the myeloencephalitis in studied horses with neurological manifestation of ataxia, while the blood serological results indicated a previously exposure to T. gondii.