![]() “Now we’re seeing what was approved as a one-dose vaccine being converted to a two-dose vaccine,” John Moore, professor of microbiology and immunology at Weill Cornell Medicine, said of the J&J vaccine.įor people who get boosters, feeling under the weather in the days following is the most likely outcome, the CDC says. While all three boosters are successful, the CDC lists J&J’s “vaccine effectiveness” or “VE” at 71%, while Pfizer’s rate is 88% and Moderna’s 93%. Those who were initially vaccinated with the J&J vaccine benefit the most from a booster shot, because the first dose is less effective than the Pfizer and Moderna vaccines. 21, Johnson & Johnson noted that recipients of its booster reported fewer local and systemic side effects than participants in its Phase I/II study in January 2021. In its Phase III drug trial data released on Sept. Local reactions increased slightly (from 71.7% after the second dose to 74.1% after the booster), and systemic reactions modestly declined (from 71.7% after the second dose to 69.2% after the booster). Underarm lymph node swelling is more likely to stem from the Pfizer booster than from the others, the FDA says.Īmong the 6,300 three-time Pfizer dose recipients in the trial, a similar trend was reported. They include muscle and joint aches, swelling or soreness at the injection site, fatigue, headache, chills or fever, and swollen lymph nodes, according to Johns Hopkins Medicine. The side effects of boosters are similar across all three vaccine brands. Colorado, California, and New Mexico similarly allow all adults to get boosters. Dave Chokshi, said this Monday that all NYC adults are eligible for a booster shot, especially as the holiday season approaches. In the meantime, the commissioner of the NYC Department of Health and Mental Hygiene, Dr. Adults who received Pfizer-BioNTech or Moderna are eligible six months after their second dose if they are 65 or older, have an underlying health condition, or work or live in a high-risk environment.Īlthough the FDA and CDC have yet to approve booster eligibility for all adults, the answer could come before Thanksgiving. Johnson & Johnson vaccine recipients are eligible for a booster two months after their first dose. So far, more than 30 million people have received one. The topic is increasingly relevant as more people become eligible for booster shots.
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