BA.2.12.1 poised to become dominant in US, raising concern for future vaccines Ars TechnicaNewer, fitter descendants of Omicron variant begin to drive their own coronavirus waves CNNCovid Omicron Variant BA.2.12.1 Spreading Quickly Across United States; Related Cases Up Nearly 100% In Past Two Weeks Yahoo EntertainmentMost Contagious COVID Subvariant Yet Eyed in Up to 70% of NY Area Cases, Nearly 2x US Rate: CDC NBC New YorkHere's how coronavirus may actually be getting more like flu - STAT STATView Full Coverage on Google News