We report 5 clustered acute gastroenteritis outbreaks in long-term care facilities in Utah, USA, that were linked to healthcare employees working at multiple facilities. Four outbreaks were caused by norovirus genotype GIX. We recommend continued norovirus surveillance and genotyping to determine contributions of this genotype to norovirus outbreaks.
Keywords: Norovirus; United States; Utah; acute gastroenteritis; enteric infections; food safety; long-term care facilities; viruses.