| http://www.w3.org/ns/prov#value | - Had some more co-workers ask for info today It varies from 40-90% and is usually surprisingly high, but even poorly matched vaccine has been shown to significantly reduce influenza deaths.http://www.cdc.gov/flu/professionals/vaccination/effectivenessqa.htmI believe the CDC is a reputable source, but feel free to disagree.
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