We tested fecal samples from 93 norovirus-negative gastroenteritis outbreaks; 21 outbreaks were caused by sapovirus. Of these, 71% were caused by sapovirus genogroup IV and 66% occurred in long-term care facilities. Future investigation of gastroenteritis outbreaks should include multi-organism testing.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3358050PMC
http://dx.doi.org/10.3201/eid1805.111843DOI Listing

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