Omicron subvariants BQ.1 and BQ.1.1 — dubbed “escape variants” for their immune evasiveness — now account for 49.7 percent of U.S. COVID-19 cases, according to the CDC’s COVID-19 data tracker weekly review published Nov. 18. Ten findings: Variants Based on projections for the week ending Nov. 19, the CDC estimates that BQ.1 accounts for 25.5 […]