Serotyping, antibiotic susceptibility, and virulence genes screening of Escherichia coli isolates obtained from diarrheic buffalo calves in Egyptian farms

AIM: isolated from buffalo at some places in Egypt; noticibly, this issue was not discussed in the country yet. MATERIALS AND METHODS: isolates were biochemically, serologicaly identified, tested for antibiotic susceptibility, and polymerase chain reaction (PCR) analyzed for the presence of antibiotic resistance determinants and virulence genes. RESULTS: in 2 isolates only (14.3%), all isolates carried at least one virulence gene except two (85.7%). CONCLUSION: variants which have a public health importance.