BA.2.86 is beginning to spread throughout the United States.
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Researchers still don’t know how well BA.2.86 will evade immunity or whether it will cause more severe disease than its predecessors.
President Joe Biden tested positive for COVID-19 on July 21, 2022, but was reportedly feeling well enough to work and take calls, as seen in this photo released by the White House.
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According to a letter from Biden’s doctor, the president has a runny nose, mild fatigue and a slight cough. The letter also noted that Biden began taking an antiviral drug the morning he tested positive.
It’s hard to keep up. But new Omicron sub-variants are emerging that may lead to reinfections and another spike in cases.
BA.2, one of three main omicron sublineages, is sweeping the world.
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The latest addition to the omicron lineage has been making waves in Europe. Whether it will do the same in the U.S. depends on rates of vaccination and prior infection.