Americans have high enough immunity to ward off the threat posed by the BA.2 Omicron COVID-19 variant to some extent, according to Rochelle Walensky, director of the Centers for Disease Control and Prevention (CDC).
“The high level of immunity in the population from vaccines, boosters, and previous infection will provide some level of protection against BA.2,” Walensky said during a press briefing by the White House COVID-19 response team and officials from the Department of Health and Human Services (HHS) on April 5.
