Overview
- CDC reports an estimated 15 million U.S. influenza cases with hospitalizations up 48% week over week, more than 180,000 hospitalized, and about 7,400 deaths including 17 children.
- Mexico’s health ministry confirms 2,313 influenza cases and seven deaths this season, with A(H1N1) accounting for 52.9% of cases and A(H3N2) for 33.6%.
- PAHO warns of simultaneous circulation of influenza—predominantly A(H3N2) in parts of the hemisphere—and RSV, urging stronger surveillance, service readiness, and faster vaccination campaigns.
- Authorities note vaccine effectiveness is roughly 30–40% in adults and higher in children, and recommend masks when symptomatic, hand hygiene, and staying home when ill.
- Clinicians and the CDC advise urgent care for high fever with trouble breathing, blue lips, chest pain, severe muscle pain, very productive cough, marked weakness, or markedly reduced urination.