EPIDEMIC SALMONELLA GASTROENTERITIS DUE TO CONTAMINATED IMITATION ICE CREAM1

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Abstract
Armstrong, R. W., T. Fodor (New York City Department of Health, New York, N.. Y. 10013), G. T. Curlin, A. B. Cohen, G. K. Morris, W. T. Martin, and J. Feldman. Epidemic salmonella gastroenteritis due to contaminated imitation ice cream. Amer. J. Epid., 1970, 97: 300–307.—In a large common-source food borne epidemic of gastroenteritis traced to 14 separate banquets, an estimated 1, 790 persons became ill. Salmonella typhimurium and two other salmonella serotypes were isolated from stool samples from individuals with gastroenteritis. Epidemiologic investigations revealed that all outbreaks were due to ingestion of contaminated imitation ice cream desserts produced by a company in New York City. The contamination of the imitation ice cream resulted from the use of salmonella-infected unpasteurized egg yolks that were not cooked during the ice cream manufacturing process. The sources of salmonellae in egg yolks were “checked” eggs that originated from poultry farms located in several states.

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