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8%) and 53 (45.7%) were positive for B. bigemina by microscopy, nested PCR, rRAP-1/CT based and rP200/CT based indirect ELISA, respectively. The diagnostic sensitivities of rRAP-1/CT and rP200/CT indirect ELISAs were 97.8% and 91.3%, while the diagnostic specificities were 90% and 84.3%, respectively, when nested PCR was taken as a reference test. An almost perfect agreement (Kappa value -0.859) between rRAP-1/CT ELISA and nested PCR results, and a substantial agreement (Kappa value -0.737) between rP200/CT ELISA and nested PCR were noticed. The findings of