Dominant coronavirus mutant contains ghost of pandemic past


The dominant coronavirus mutant is similar to previous mutants It's known as BA two 12 one and is responsible for 58% of virus cases in the U.S. last week It's a member of the omicron family but scientists say it spreads faster than omicron predecessors and can escape immunity and possibly might cause more serious disease It also contains properties of the delta variant This genetic change is bad news for people who caught the original omicron and thought they might be unlikely to get it again soon Lab data suggest a prior infection with the original omicron is not very protective against reinfection with The New Mutants but research also shows those who got sick from the delta variant may be better protected from The New Mutants I'm Ed

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