Flu vaccines didn’t work that well in the US, officials find

AP News – Friday, March 13, 2026
By Mike Stobbe

As the U.S. flu season winds down, health officials say the flu vaccine didn’t work very well, with one of its worst effectiveness rates in more than a decade.

A new strain that dominated the early winter was not well matched to the vaccine, leading to an intense early onslaught of flu.

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