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RESPWatch Week 40: Viral Respiratory Surveillance for LA County

County of Los Angeles, California sent this bulletin at 10/16/2026 03:52 PM PDT

The latest RESPWatch report and dashboard are now live!

Flu activity is increasing earlier than normal! Stay up to date about what's circulating in the community with our respiratory virus surveillance data dashboard.

For the latest guidance on vaccines, testing, and treatment, see:
→ CDPH Health Alert: Immunize, Test, and Treat This Respiratory Virus Season
→ LAHAN: Fall 2026 Respiratory Vaccine Recommendations (PDF)

View on RespWATCH

Download the report

Los Angeles County Department of Public Health (Public Health) collects information on indicators of COVID-19, influenza, and Respiratory Syncytial Virus activity year-round. These indicators track the intensity, spread, and temporal trends of viral respiratory illness in LA County.

Los Angeles County, Department of Public Health

Acute Communicable Disease Control Division

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