A foodborne norovirus outbreak associated with six events and a single caterer, Canberra, November 2022

This gastroenteritis outbreak was determined to be due to norovirus. The infection source was suspected to be an asymptomatic food handler and inadequate food handling controls allowing contamination of certain foods. This study demonstrates the importance of effective hand hygiene and food handling practices at all times, given that asymptomatic individuals can excrete and transmit norovirus and these outbreaks can be large and costly.