Flu vaccines are made each year to protect against three or four different kinds of flu virus, and this season’s shot turned out to be a mismatch against the bug that showed up late. News on vaccinations looks at hepatitis A, HPV, and exemptions.
from https://khn.org/morning-breakout/promising-flu-vaccine-turned-out-to-be-a-big-disappointment-showing-no-significant-protection-against-strain/
from
https://healthnews010.tumblr.com/post/185924355033
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