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New, highly mutated COVID variants 'Pirola' BA.2.86 and JN.1 may cause more severe disease, new studies suggest

By Fortune  
   January 09, 2024

Highly mutated COVID variant BA.2.86—close ancestor of globally dominant 'Pirola' JN.1—may lead to more severe disease than other Omicron variants, according to two new studies published in the journal Cell.

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