This year’s flu outbreak is shaping up to be the worst in a decade. Why does it vary so much season to season?
flu outbreak
Understanding this year’s flu vaccine
Get the shot–or not? Learn more about this year’s flu outbreak here.
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This year’s flu outbreak is shaping up to be the worst in a decade. Why does it vary so much season to season?
Get the shot–or not? Learn more about this year’s flu outbreak here.