Sapovirus is a notable cause of norovirus-negative gastroenteritis outbreaks, particularly in long-term care facilities, indicating a need for multi-organism testing.
May support sapovirus testing in norovirus-negative LTCF outbreaks; leaves open prospective validation for surveillance.
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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Lee et al. (2012) studied this question.
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