COVID boosters effective against XBB variants: U.S. CDC study

COVID boosters effective against XBB variants: U.S. CDC study

The updated COVID-19 boosters from Pfizer Inc/BioNTech and Moderna helped prevent symptomatic infections against the new XBB-related subvariants, offering new evidence of how the vaccines perform against these fast-spreading strains, U.S. officials said on Wednesday. “Today we have additional evidence to show that these updated vaccines are protecting people against the latest COVID-19 variants,” Dr. Brendan Jackson, head of the U.S. Centers for Disease Control and Prevention’s COVID-19 response, told reporters in a briefing. Released last fall, the updated boosters …