CDC Panel Endorses Moderna and J.&J. Boosters for Millions

In a sweeping victory for the Biden administration, the Centers for Disease Control and Prevention on Thursday endorsed booster shots of the Moderna and the Johnson & Johnson Covid-19 vaccines for tens of millions of Americans. The decision follows an agency endorsement last month of booster shots of the Pfizer-BioNTech vaccine and opens the door for many Americans to seek out a booster shot as early as Friday. The coronavirus vaccines “are all highly effective in reducing the risk of severe disease, hospitalization, and death, even in the midst of the widely circulating Delta variant,” Dr. Rochelle Walensky, director of the C.D.C. said in a statement on Thursday night.