| [a familial outbreak of verotoxin-producing escherichia coli o103:h2 infection in which a calf was the suspected infectious source]. | a familial outbreak of verotoxin-producing escherichia coli (vtec) infection occurred in july 1996 in akita prefecture. four vtec strains harboring vt-1 and eaea genes were isolated from three patients and a calf, breeding farm for which was located as close as 4 meters from the house where the patients lived in. all of the 4 vtec isolates were serotyped as o63:h2 using commercially available sera kits. however, a patient isolate, ec-281, was serotyped as 0103:h2 at the international escherichia ... | 1998 | 9745220 |