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 ...

Moderna said on Monday its updated Covid-19 booster generated "significantly higher" neutralizing antibodies against the Omicron BA.4/BA.5 subvariants than its earlier shot. The bivalent booster used ...

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.

Eligible Oregonians can now receive any of the three vaccine types as a booster shot, thanks to the approved "mix-and-match" strategy. Credit: Motoya Nakamura / Multnomah County Oregon’s regional ...