Written by stopcoalMarch 29, 2021 COVID-19 Vaccines vs Variants—Determining How Much Immunity Is Enough This JAMA article discusses the timing of booster shots and the threat of mutations. https://jamanetwork.com/journals/jama/fullarticle/2777785 Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related Leave a comment Cancel reply Δ