EG.5 is a descendant of the XBB.1.9.2 variant, with an additional mutation that might be helping it outcompete other strains. Largest among these XBB subvariants are infections grouped as the XBB.1.16, XBB.1.9.1, XBB.2.3, XBB.1.6 or EG.5 strains, which each make up between 10% and 15% of infections nationwide.Įxperts had previously singled out EG.5 as one of the fastest growing lineages worldwide. Instead, the CDC's recent projections estimate that a mix of descendants from the XBB variant that first drove infections last winter are now competing around the country. Unlike previous waves, no single variant has yet emerged this summer to dominate infections nationwide. They cautioned that there were considerable differences between models within the group, with some teams projecting an additional smaller peak elsewhere in the year. Projections have differed over what the coming months will hold.Īn ensemble of academic and federal modelers said last month that the "main period of COVID19 activity is expected to occur in late fall and early winter over the next 2 years, with median peak incidence between November and mid January." has experienced increases in COVID-19 during the past three summers, so it's not surprising to see an uptick," Conley said. In 2021, a sharp increase driven by the Delta variant saw hospitalizations surge by 20,029 more from June to July, reaching 32,850 hospitalized through July 24, 2021.
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