BA.2 Omicron Subvariant , Is Now the Dominant COVID Strain, in the US.<br />NBC News reports that the BA.2 subvariant of Omicron <br />is now estimated to account for 54.9% of the <br />coronavirus variants circulating in the United States. .<br />Despite a resurgence of COVID-19 cases in Asia and Europe, health experts in the U.S. believe that a rise in infections appears unlikely as overall numbers continue to decline.<br />NBC News reports that top U.S. infectious disease official <br />Dr. Anthony Fauci said the increasing dominance of the BA.2 subvariant may lead to a rise in cases but will likely fall short of a major surge. .<br />As of March 26, the seven-day moving average <br />of U.S. COVID-19 cases is up about 4% from <br />a week earlier, rising to 27,895.<br />However, the number of overall infections is still declining from record highs in January. .<br />According to a CDC guideline introduced last month, <br />most people in the U.S. are now considered <br />to be in low COVID transmission.<br />The guidelines reportedly emphasized hospital capacity over total case counts. .<br />According to a CDC model that estimates proportions <br />of circulating variants, BA.2 made up 39% of <br />strains in the U.S. for the week ending March 19.<br />NBC points out that in the past, the CDC has revised its estimates as more data is made available.<br />NBC points out that in the past, the CDC has revised its estimates as more data is made available
