Public healthfromPoynter2 days agoA new flu strain slipped past this year's vaccine. Doctors say get the shot anyway - PoynterA new influenza A mutation called subclade K has reduced vaccine effectiveness, driving a large surge in U.S. flu cases, hospitalizations, and deaths.
Public healthfromwww.npr.org2 months agoWhy next year's flu shot might not be as good as it should beGlobal influenza sample sharing has sharply declined, undermining surveillance, complicating vaccine strain selection, and risking reduced vaccine effectiveness.