Story perspectives
High HMPV Levels Detected in Northern California Wastewater
3/6/2026
1 of 1
Story summary
- High levels of human metapneumovirus (HMPV) have been detected in wastewater across Northern California, including Novato and Redwood City.
- HMPV causes respiratory illnesses similar to the flu and has no vaccine or specific treatment.
- Symptoms typically include cough, fever, and nasal congestion, lasting a few days to a week.
- The Centers for Disease Control and Prevention advises handwashing and staying home when unwell as infections rise in winter and spring.
