Flu Season Warning: H3N2 Subclade K Is Not Matched to This Year’s Vaccine

Hi, it’s Jason in Melbourne. It’s warming up here, but the northern hemisphere is sliding into flu season, and the early signals aren’t pretty. More on that in a moment, but first …

Flu activity in the US remains low for now, but it’s starting to climb. The latest FluView report from the Centers for Disease Control and Prevention shows a steady uptick in test positivity and hospital admissions.