The researchers found that among more than 600,000 veterans, J&J's vaccine's protection fell from 88% in March to 3% in August. Meanwhile, Moderna's vaccine protection against infection fell to 64% from 92%, and Pfizer's declined to 50% from 91% during that same time period.
>The researchers found that among more than 600,000 veterans, J&J's vaccine's protection fell from 88% in March to 3% in August. Meanwhile, Moderna's vaccine protection against infection fell to 64% from 92%, and Pfizer's declined to 50% from 91% during that same time period.
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