A new dominant omicron strain in the U.S. is driving up cases — and reinfections

[npr.org – 2022-07-11] For much of the pandemic, the only silver lining to coming down with a case of COVID-19 was that you likely wouldn’t catch it again for a while (though there isn’t exactly a definitive answer on how long that period of immunity typically lasts). Increasingly, however, more people appear to be contracting […]

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