Norovirus GII.17 overtakes GII.4 as the dominant strain in US outbreaks Norovirus GII.17 has rapidly overtaken GII.4 as the leading cause of norovirus outbreaks in the United States between 2022 and 2025. This unprecedented shift signals an urgent need for continued genom...

Norovirus GII.17 overtakes GII.4 as the dominant strain in US outbreaks www.news-medical.net/news/2025060... #norovirus #outbreaks #publichealth #GII17 #gastroenteritis #epidemiology #virus #CDC #infection #health