
Report: Influenza vaccine effectiveness lower in recent months
By Zachary Stieber Contributing Writer The effectiveness of vaccines against influenza dropped during the 2025-26 virus season, officials said on Thursday, about two months after the Centers for Disease Control and Prevention stopped recommending flu vaccination for all children. Vaccine effectiveness for late 2025 and early 2026 against outpatient visits and hospitalization was pegged at 14% to 48% among children, Dr. Lisa Grohskopf with the CDC’s Influenza Division told a meeting

















