Johnson & Johnson Covid-19 vaccine recipients are better off getting a booster shot from Pfizer or Moderna, a highly anticipated U.S. study suggested Wednesday. The National Institutes of Health study ...

LOS ANGELES - According to a study by the National Institutes of Health on whether or not it is safe to "mix and match" COVID-19 vaccines found that people who received the single-dose Johnson & ...

The U.S. will likely start to widely distribute Pfizer Covid-19 booster shots during the week of Sept. 20, but the rollout for Moderna's vaccine could be delayed, White House chief medical advisor Dr.

Both the CEOs of Moderna and Pfizer said a booster dose of their respective COVID-19 vaccines could be required as soon as September for those who were among the earliest vaccinated. During an Axios ...

WASHINGTON, D.C. — U.S. health officials announced Wednesday that booster shots will soon be available to Americans who have received the COVID-19 vaccines made by Pfizer and Moderna. Officials with ...

SAN FRANCISCO -- Moderna announced people may need a second booster to increase protection. But is a fourth shot the right approach? ABC7 News reporter Luz Pena from San Francisco spoke to multiple ...