Your Flu Shot May Not Protect You This Winter
Getting a flu shot is a good idea. This winter, though, it might not be as effective as you’d hope.
the early flu samples, taken between Oct. 1 and Nov. 22, less than half
were good matches for this year’s formula, The Centers for Disease
Control and Prevention announced Wednesday in an advisory for doctors. Flu viruses mutate over time, and the lead time needed to develop the vaccine can create a disconnect.
flu shot is still a good idea. It will protect against some strains
that are circulating and can reduce complications even among the mutated
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