The Health Protection Agency reported that there had been an outbreak affecting at least 529 people who had eaten at the Fat Duck restaurant in Bray, Berksire, England. Shellfish contaminated with Norovirus were responsible for the illnesses. Traceback on the shellfish showed evidence of contamination. There had been reports of illness in other establishments associated with oysters from the same source. The outbreak lasted for six weeks. Several food handling errors were identified and might have contributed to the transmission of the virus.