Campylobacter Infection Associated With Raw Milk

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Abstract
Raw milk is identified with increasing numbers of outbreaks of gastroenteritis and is an important vehicle for transmission ofCampylobacter infection. UnlikeCampylobacter jejuni, Campylobacter fetussubspfetushas not been associated with common-source outbreaks of gastroenteritis. This report describes an outbreak of gastroenteritis involvingC jejuniand a thermotolerant strain ofC fetussubspfetusassociated with raw milk. Fifteen (39%) of 38 persons who attended a banquet in Wisconsin in June 1982 developed acute gastroenteritis. Stool specimens were obtained from nine ill guests; four yieldedC jejuniand three yieldedC fetussubspfetus. TheC fetussubspfetusisolates were identified fortuitously, in part because of unusual thermotolerance (growth at 42 °C), permitting isolation at temperature appropriate forC jejuni. Survey results implicated raw milk as the source of the outbreak. Findings provide evidence of a potentially emergent milkborne pathogen contributing to the risk of raw milk consumption and suggest that current diagnostic laboratory techniques may fail to identify significant foodborne agents. (JAMA1986;255:361-364)

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