LOS ANGELES -- The COVID-19 vaccines made by Pfizer and Moderna both require two doses to be administered, several weeks apart, for them to be fully effective. But there has been some scientific ...

Video above: FDA votes to authorize more COVID-19 boosters, mix-and-matching doses in some casesA booster dose of the Pfizer/BioNTech coronavirus vaccine was found to have a high efficacy — 95.6% — ...

SAN FRANCISCO -- Herculean efforts by scientists and physicians around the world have resulted more than 50 experimental COVID-19 vaccines currently in global clinical trials. The focus in the U.S.

Oct 6 (Reuters) - The chief adviser for the U.S. government's Operation Warp Speed COVID-19 vaccine program, Moncef Slaoui, on Tuesday said efficacy data readouts are expected from Pfizer Inc (PFE.N), ...

The independent, National Institutes of Health (NIH)-appointed Data Safety Monitoring Board (DSMB) for the Phase 3 study of mRNA-1273, has informed Moderna Inc. that the trial for its COVID-19 vaccine ...