The strain, which Americans were first alerted of by New York state officials in April, makes up 58 percent of sequenced COVID-19 cases, up from 49 percent of cases the previous week. There is a new dominant COVID-19 strain in America, with the BA 2.12.1 variant overtaking the BA.2 'stealth' variant, the Centers for Disease Control and Prevention ( CDC) revealed in its weekly update on Tuesday, with the new strain likely behind the rising case figures across the east coast.
