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What is the Covid BA.5 variant and why is it reinfecting so many people?

According to the World Health Organization’s most recent report, the variant was behind 52 percent of cases sequenced in late June, up from 37 percent in one week. What is the Covid BA.5 variant and why is it reinfecting so many people?
People wait to take coronavirus disease tests at a pop-up testing site in New York City, US, July 11, 2022. Reuters
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Reuters
Published at : July 14, 2022
Updated at : July 14, 2022 12:24
London

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