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 ...

Pfizer has released the full data from its phase 3 trial of an mRNA flu vaccine candidate, with the potential new shot demonstrating 34.5% greater efficacy compared to a control vaccine. Of 9,225 ...

A new mRNA vaccine against the flu has proven itself more effective than existing vaccines in a new clinical trial. The Pfizer-developed vaccine was found to be 34.5 percent more effective than ...

Pfizer’s mRNA flu vaccine outperformed the standard flu shot in a Phase 3 clinical trial, according to results published Wednesday in the New England Journal of Medicine. The vaccine uses the same ...

WASHINGTON — Pfizer and Moderna say the Food and Drug Administration have opened up COVID-19 booster shots to all adults, letting them choose another dose of either vaccine. The move expands the ...

A third dose of the Pfizer/BioNTech COVID-19 vaccine can "strongly" boost protection against the delta variant -- beyond the protection afforded by the standard two doses, suggests new data released ...

WASHINGTON (AP) — U.S. regulators approved updated COVID-19 shots Wednesday but limited their use for many Americans — and removed one of the two vaccines available for young children. The new shots ...

The ability to inoculate young children against COVID-19 in the U.S. may be diminished this fall as the FDA weighs whether to renew the emergency green light for the vaccine currently cleared in the ...

Jan 20 (Reuters) - The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the ...

The Department of Health and Human Services will cancel 22 vaccine development projects totaling $500 million, marking a major policy shift under Secretary Robert F. Kennedy Jr. that directly affects ...