It was of etiologic significance that a number of the strains of E. coli isolated exhibited virulence markers, such as mucoid and hemolytic colonies, which are associated with pathogenicity (30, 31).
It was of etiologic significance that anumber of the strains of E. coli isolatedexhibited virulence markers, such asmucoid and hemolytic colonies, whichare associated with pathogenicity (30,31).