In a flu season that has been classified as the worst in decades, influenza vaccinations prevented anywhere from 40,000 to 90,000 hospitalizations according to data just released by the Centers for Disease Control and Prevention. The effectiveness data are less straightforward; the 2018–2019 vaccine was 29% effective overall. That figure is deceptively low, however, in that the CDC says this year’s vaccine offered “no significant protection” against H3N2 influenza, but lowered the risk of H1N1 …
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