A recent study has provided the first side-by-side comparison of how three major COVID-19 vaccine types differ in triggering ...

Despite a U.S. factory mixup, more Johnson & Johnson doses are becoming available in the U.S., marking the only single-shot vaccine option. So how effective is it and how does it compare to the Pfizer ...

WASHINGTON — The U.S. will likely begin distributing a third vaccine against COVID-19 in the next week, and health officials are girding for questions about which one is best. The Johnson & Johnson ...

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 ...

SAN FRANCISCO -- Another COVID-19 vaccine -- AstraZeneca -- is poised to arrive in the U.S., bringing a fourth option for Americans. Each vaccine is administered slightly differently, some can result ...

Amid uncertainty over how the Trump administration would approach mRNA COVID-19 vaccines for the upcoming respiratory virus season, the FDA has approved updated shots from Pfizer and Moderna. But ...

Infectious diseases specialist says we will see a serious flu season and the vaccine is still ‘very helpful’, and also COVID ...

Moderna is suing Pfizer and BioNTech for infringing patents central to Moderna's mRNA technology platform used to develop the COVID vaccine, the company said in a press release Friday. A widely ...

Shares of COVID-19 vaccine makers Pfizer Inc (NYSE:PFE), BioNTech SE ADR (NASDAQ:BNTX) and Moderna Inc (NASDAQ:MRNA) are trading lower Friday following a Washington Post report that Trump ...

Pharmacies are seeing high demand for Pfizer COVID vaccine, yet many have not seen a shipment from the company in weeks, ...