A new study reports that the Johnson & Johnson COVID-19 vaccine may not be as effective against the delta variant as mRNA-based alternatives. These findings contradict the vaccine maker’s claims of single-dose effectiveness against the variant.
The Latest on COVID-19
Updated on July 21, 2021 at 1:00 p.m. PDT
A new study reports that the Johnson & Johnson COVID-19 vaccine may not be as effective against the delta variant as mRNA-based alternatives. These findings contradict the vaccine maker’s claims of single-dose effectiveness against the variant.
Parts of Europe are contending with the beta variant of the coronavirus, causing U.K. government officials to change their pandemic policy regarding international travelers from France.
Dr. Jerome Adams, the former U.S. surgeon general for the Trump White House who once advised against face masks, now says that even fully vaccinated people may need to wear masks.