Overview
- California reports rising wastewater signals, especially in Los Angeles County and the Bay Area, as officials note statewide levels are increasing but still relatively low and 32 lab‑confirmed outbreaks have been logged this year versus 69 last year.
- CDC test positivity reached 11.69% nationally for the week ending Nov. 22 and 14.08% in the West, while WastewaterSCAN data show a 69% national increase in concentrations since October.
- Midwest and Northeast indicators remain elevated with spikes in Michigan and Indiana, local alerts in Illinois, and wastewater or surveillance flags in states including Indiana, Louisiana, Michigan, Alabama, California, Florida and Texas.
- Local disruptions include a two‑day closure at Roberts Elementary in Medford, Massachusetts, and reports of strained emergency departments in parts of Virginia.
- UKHSA says recent increases in England remain within expected levels, with weeks 48–49 lab reports 16.1% below the five‑season average for the same period but 33.9% higher than the prior two weeks.