| frequency of adhesive factors and enterotoxins in strains of escherichia coli isolated from piglets with diarrhea. | neonatal colibacillosis is one of the most prevalent illnesses in pig farms. in order to examine the frequency of adherence factors and the production of enterotoxins in strains of e. coli, we collected stool specimens from 500 piglets between 1 and 10 days of age with diarrhea, including piglets from several different farms on the periphery of mérida, yucatán. one thousand and eighty (1080) strains of e. coli were isolated, of which 127 (11.76%) produced sta, and 62 (5.74%) produced adherence f ... | 1997 | 10932724 |