Flu season may be winding down. However, recent reports from Southern California indicate that norovirus remains a concern, especially following outbreaks impacting hikers.
The NBC reports that the recent wastewater surveillance has revealed high levels of norovirus across much of the country. WastewaterSCAN scientific program manager Amanda Bidwell said that norovirus levels have remained elevated for the past 21 days. According to the Centers for Disease Control and Prevention’s NoroSTAT program, there were 1,194 outbreaks recorded between Aug. 1, 2025, and May 7, 2026. That figure is actually down from 2,534 outbreaks during the same period ending last year.