California Department of Public Health Issues 2026-27 Respiratory Virus Season Immunization Recommendations

The California Department of Public Health (CDPH) and the West Coast Health Alliance (WCHA) have released immunization recommendations for the upcoming 2026-2027 respiratory virus season. These guidelines, informed by national medical organizations, emphasize the importance of vaccination against COVID-19, influenza, and RSV to reduce severe illness, hospitalizations, and strain on healthcare systems.