Non-Norovirus Viral Gastroenteritis Outbreaks Reported to the National Outbreak Reporting System, USA, 2009-2018

During 2009-2018, four adenovirus, 10 astrovirus, 123 rotavirus, and 107 sapovirus gastroenteritis outbreaks were reported to the US National Outbreak Reporting System (annual median 30 outbreaks). Most were attributable to person-to-person transmission in long-term care facilities, daycares, and schools. Investigations of norovirus-negative gastroenteritis outbreaks should include testing for these viruses.

Automated summary

Between 2009 and 2018, numerous gastroenteritis outbreaks were reported to the US National Outbreak Reporting System, with the majority attributed to person-to-person transmission in long-term care facilities, daycares, and schools. Investigations of norovirus-negative outbreaks should include testing for adenovirus, astrovirus, rotavirus, and sapovirus.