Fig. 5From: Purification of recombinant IpaJ to develop an indirect ELISA-based method for detecting Salmonella enterica serovar Pullorum infections in chickensThe application of the indirect ELISA assay in clinical antisera samples. Two hundred chicken antisera samples from a poultry farm were collected and subjected to the indirect ELISA assay. Four samples with OD450 > 0.45 were considered to be positive samples. The four positive antisera identified were subjected to the PAT test with S. Pullorum strain C79–13Back to article page