Eighteen urogenic isolates have been isolated from patients with UTI. Complete biochemical identification were carried out for all isolates. Isolates were also identified serologically for their antigenic formula of O and K antigens. Five isolates were with antigenic formula of O78:K80, four isolates with O114:K90, two of the isolates were of O142:K86, two isolates with O164:K untypable and one was with O157 also untypable K antigen. Testing virulence was carried by exploring nine virulent genes (traT, fyuA, ompT, pil, Sfa/foc and cnf1 ibeA, hly and pap) and study their cytotoxic ...