The Perfect Enemy | How genetics, other factors can prevent Covid infections
August 17, 2022

How genetics, other factors can prevent Covid infections

How genetics, other factors can prevent Covid infections  NBC News

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More than 70% of people in the U.S have had Covid-19 at least once which raises the question of how the other 30% avoid getting sick. NBC News’ Aria Bendix explains which immune defenses prevent infection and if the new BA.5 variant could change that.