Monoclonal Antibody based Blocking ELISA for Diagnosis of Brucellosis

Abstract

Background: Porcine brucellosis is a contagious and emerging zoonosis but neglected in most of the endemic countries including India. The disease in pigs is rarely reported due to non-availability of diagnostics or major focus is on bovine brucellosis. Hence, the necessity was felt to diagnose porcine brucellosis by Monoclonal antibody based ELISA, RBPT and STATS for the detection of anti-Brucella antibodies and to record spatial seroprevalence of porcine brucellosis in the country. Methods: The Rose Bengal Plate Test (RBPT), Standard tube agglutination test (STAT) and Bru Alert monoclonal antibody based c-ELISA was employed to screen 148 sera samples for the presence of Brucella antibody. Result: A total 148 samples were collected and tested, the overall prevalence of Brucella infection in pig was 43.2% per cent (64/148) by C-ELISA followed by RBPT 40% (60/148) and STAT 25% (40/148) in the study area comparatively high seropositivity was found in female animals. The agreement between the two test was excellent (Kappa = 0.167) and also, chisquare test indicated an evidence of strong diagnostic weapon for detection of swine brucellosis.