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  1. Oct 21, 2022 · The new booster is designed to protect against the original strain and Omicron subvariants BA.4 and BA.5. Both Pfizer and Moderna’s bivalent boosters are the same dose size as the previous version. Pfizer’s vaccine for ages 12 and up contains 30 micrograms of antigen, while Moderna’s contains 50 micrograms.

  2. Sep 27, 2022 · Americans have two options for a new omicron-specific Covid booster shot: Pfizer or Moderna. Which one should you get? The short answer: It mostly depends on what you’re eligible for. Pfizer’s...

  3. Jan 26, 2023 · That day has finally come. In the fall of 2022, the Food and Drug Administration (FDA) authorized—and the Centers for Disease Control and Prevention (CDC) recommended—two updated boosters. The boosters target two Omicron subvariants, BA.4 and BA.5.

  4. Jan 25, 2023 · In the real-world CDC data, researchers show that the bivalent booster is reducing COVID-19 among those who receive it, and that protection from disease against the newest variants is similar to...

  5. May 23, 2022 · A small study has found that booster doses of existing COVID-19 vaccines provide good protection against the Omicron variant of SARS-CoV-2 and its most common subvariant. What you need to know.

  6. Sep 16, 2022 · The Food and Drug Administration authorized new formulations of the Moderna and Pfizer-BioNTech COVID vaccines for use as a single booster dose just a few weeks ago. That decision was quickly...

  7. Sep 2, 2022 · The Centers for Disease Control and Prevention recommended Thursday that teenagers and adults get updated booster shots from Pfizer or Moderna. The shots — also known as bivalent vaccines —are...

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