Flu Vaccine Effectiveness found to be Around 50%
Russ, et al. (2025, Sep 25). Interim effectiveness estimates of 2025 Southern Hemisphere influenza vaccines in preventing influenza-associated outpatient and hospitalized illness–Eight southern hemisphere countries, March-September 2025. MMWR Weekly Report, 74(36), 570-578. https://www.cdc.gov/mmwr/volumes/74/wr/mm7436a3.htm Takeaways: During the 2025 Southern Hemisphere influenza season, seasonal influenza vaccination reduced influenza-associated outpatient visits by 50.4% and hospitalization by 49.7%. Seasonal influenza vaccination provides important protection from influenza illness and associated potential complications. Monitoring seasonal influenza vaccine effectiveness (VE) in Southern Hemisphere countries can apprise health authorities in Northern Hemisphere countries about the potential protection provided from vaccination. Using data from influenza-like illness (ILI) and severe Read More …
