Flu vaccine guards against new strains
WASHINGTON (AP) — Time to get your flu vaccine.
Last year’s flu shot won’t shield you this year: Two new strains of influenza have begun circling the globe, and the updated vaccine appears to work well against them, government officials said Thursday.
Flu specialists can’t say how bad this winter’s flu season might be. Influenza strains constantly evolve, and some cause more illness than others.
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