If you are at least 18 and received one or two J&J vaccine doses, you are eligible for a Moderna or Pfizer bivalent vaccine at least two months after your last dose. The Novavax booster can only be used as a first booster shot if you’ve gotten one or several COVID-19 boosters, you cannot receive a Novavax booster. It’s safe and effective to choose which vaccine you receive as a booster, either Pfizer or Moderna, regardless of which initial vaccines you received. Health care providers may administer additional doses as needed. Immunocompromised people: People with compromised immune systems can get a second bivalent booster two months after their first bivalent vaccine.Novavax’s monovalent booster is available for adults who cannot or will not get an mRNA vaccine or the omicron-specific booster. Novavax boosters: Adults 18 or older are authorized to get this booster at least six months after receiving their primary series if they have not yet gotten a COVID-19 booster, the CDC says.Doses for children younger than 6 will depend on their age, the vaccine and their vaccination history. People 65 and older may get a second bivalent booster four months after their first bivalent vaccine dose. Pfizer and Moderna boosters: People 6 and older should get one dose of the Pfizer or Moderna bivalent booster regardless of whether they previously completed their primary series.The original monovalent vaccines are no longer available. The Centers for Disease Control and Prevention (CDC) recommends getting an omicron-specific (bivalent) booster, which targets the original strain of the coronavirus as well as the BA.4 and BA.5 omicron subvariants. Which boosters are available and who can get them? All doses of the vaccine, which was associated with a rare but serious blood clotting disorder, have expired. Johnson & Johnson (J&J): The J&J vaccine is no longer available in the U.S., according to the CDC.Novavax uses a more traditional vaccine technology, directly delivering a lab-made version of the COVID spike protein upon injection. Requires two shots spaced apart for full primary vaccination. Novavax: Authorized for people 12 and older.Children under 6 may need a few shots of the bivalent vaccine, depending on their age and vaccination status, according to CDC recommendations. Most unvaccinated people will need just one dose of the updated vaccine, instead of two doses of the original vaccine. The original vaccines, called monovalent vaccines, are no longer available. Both drugmakers introduced reformulated bivalent vaccines to target the original strain of the coronavirus and omicron subvariants. Pfizer and Moderna use mRNA technology, which prompts the body to make its own version of COVID-19’s spike protein, a key part of the virus. Pfizer and Moderna: Authorized for people 6 months and older.En español | Which vaccines are available and who can get them?
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