PIOTTO, M. A. Evaluation of Theileria equi and Babesia caballi infections in equines housed at the Jockey Club in São Paulo city using C-ELISA test (Competitive Enzyme Lynked Immunosorbent Assay). [Determinação da infecção por Theileria equi e Babesia caballi em equinos alojados no Jóquei Clube de São Paulo por meio da técnica de C-ELISA (Competitive Enzyme Lynked Immunosorbent Assay)] 2009. 63 f. Dissertação (Mestrado
RESUMOA presente pesquisa teve como objetivo comparar a sensibilidade e especificidade de dois testes diagnósticos, um ELISA indireto e um ELISA competitivo,para Theileria equi,com a finalidade de disponibilizar um teste alternativo para o diagnóstico da babesiose em rebanhos equinos em território nacional. Foram avaliadas 168 amostras de soro equino (suspeitos ou não para babesiose), com idade mínima de um ano, independente de sexo, raça e manejo. Os testes foram realizados segundo especificações de cada fabricante. Os resultados obtidos foram analisados estatisticamente pelo Teste do Qui-quadrado. A concordância entre os testes foi de 97,2% entre os animais soropositivos (105 soropositivos no c-ELISA e 108 soropositivos no ELISA indireto) e 95,2% dos animais soronegativos (63 soronegativos no c-ELISA e 60 soronegativos no ELISA indireto). Não foram observadas diferenças estatisticamente significativas entre os dois testes. Concluiu-se que o teste ELISA indireto apresentou alta sensibilidade e especificidade (98,1% e 92,1%, respectivamente) para o diagnóstico de Babesiose por Theileria equi. PALAVRAS-CHAVE:Babesia equi. Theileria equi. Elisa indireto. ELISA competitivo. Equinos. SUMMARYThe present research had as objective to compare thesensitivity and specicvityof the tests of indirectELISA e competitive ELISA for Theileria equi, with purpose to evaluate an alternative test for control of babesiose in equinos flocks in domestic territory. 168 samples of equine serum had been evaluated (suspected or babesiosis does not stop), with minimum age of one year, independent of sex, race and handling. The tests had been carried through according to specifications of each manufacturer, following orientations of each one. The gotten results had been analyzed statistical by the Test of the Qui-quadrado. As result, agreement was observed enters the tests of 97,2% of soropositives animals (105 soropositives in c-ELISA and 108 soropositives in the indirect ELISA) and 95.2% of the soronegatives animals (63 soronegatives in c-ELISA and 60 soronegatives in the indirect ELISA). Statistical significant differences between Indirect and competitive test ELISA for Theileria equi had not been observed. It is concluded that indirect test ELISA showed high sensitivity and specificity (98,1% e 92,1%, respectively) for the diagnosis of Babesiosis by Theileria equi. KEY-WORDS:Babesia equi. Theileria equi. Indirect ELISA. Competitive ELISA. Equine.
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