Outbreak of SRSV gastroenteritis at an international conference traced to food handled by a post-symptomatic caterer

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Abstract
In an outbreak of small round structured virus (SRSV) gastroenteritis at an international AIDS conference 67 people were ill with diarrhoea or vomiting, one requiring admission to hospital. Epidemiological investigations demonstrated that the vehicle of infection was food prepared by a foodhandler who was recovering from a mild gastrointestinal illness. The food most strongly associated with illness, coronation chicken, was prepared by the food handler on the second day after symptoms ceased.The investigation confirms the view that foodhandlers may contaminate food with SRSV after cessation of symptoms and should remain off work until at least 48 h after recovery.