Prevalence, antimicrobial resistance (AMR) pattern, virulence determinant and AMR genes of emerging multi-drug resistant Edwardsiella tarda in Nile tilapia and African catfish

Edwardsiella tarda is a common fish pathogen, causing septicemic diseases and formidable economic losses in freshwater fish farming. This study aimed to investigate the prevalence, molecular typing, antibiogram pattern, pathogenicity, distribution of virulence determinant genes (edw1, cds1, qseC, and pvsA) and antibiotic resistance genes (blaTEM, blaCTX, sul1, tetA, qnrA, qnrB, qnrS, and aadA1) associated with natural E. tarda infection among...