A look at some of the Covid-19 data underlying Omicron’s recent spread suggests that an increasing share of Americans have some immunity, but the virus’s latest subvariant can sidestep our defenses
An increasing share of Americans have some immunity against SARS-CoV-2, but the latest Omicron version is able to sidestep our defenses
If you’ve had Covid before, why can you get it again? WSJ’s Daniela Hernandez explains what the possibility of reinfections means for the future of public-health policy and the Covid-19 pandemic. Illustration: David FangIn recent weeks, a new version of the Covid-19 virus—named BA.2.12.1—became the dominant variety in the U.S., according to the Centers for Disease Control and Prevention.
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