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RFK Jr. Questions Safety of Flu Shot Despite Decades of Research

During a Senate hearing, Health and Human Services Secretary Robert F. Kennedy Jr. defended the recent decision to allow U.S. troops to forgo the annual flu vaccine. He also repeated debunked claims that the flu shot increases the risk of infection. The flu vaccine varies in effectiveness from year to year, ranging from 20% to 60% efficacy in preventing illness, according to the CDC.

There is no evidence that getting the shot raises the risk of contracting the flu.