Campylobacter jejuni was isolated from the stools of 148 patients with symptoms and 57 symptomless subjects, and from a milk sock filter, following an outbreak of enteritis associated with consumption of unpasteurized milk. The incubation period rantged from 2–11 days with a peak at 5 days. There were no secondary cases. The attack rate was around 50% Cases occured in all age groups but were maximal in the 1–10 age group. Recovery from symptoms was complete in the majority in less than 1 week. No long term excretors were indentified. There were no differences between culture positive individuals, with or without symptoms, in age or sex distribution or duration of excretion.
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