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.
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.