![]() ![]() Anyone who is at least 50 years old or at least 12 years old and moderately or severely immunocompromised is eligible, as long as they got their first booster at least four months prior. And while it’s not exactly possible to determine when that might happen, your own health status, the current risk in your community, and potential risks you may be exposed to in the future can help you figure out when you should go ahead and get that shot, he says.įirst off, you need to be eligible for a fourth shot. According to an April 6 study published in The New England Journal of Medicine, protection against any infection starts to wane about a month after the fourth dose, though the additional protection against severe disease lasts at least six weeks.īecause of that, “the best time to get this booster would be two weeks before you get infected,” Poland says. The difficult part about deciding when to get a second booster is that even that extra protection wanes, too. But four months after that shot, efficacy against hospitalization fell to 78 percent.ĭata from Israel during the omicron surge shows that people 60 or older who got a second booster dose had a 78 percent lower risk of death than people who just got one booster, though the absolute risk of death from COVID-19 remains small for anyone who got a booster in the first place, Poland says. ![]() Two months after a first booster shot, vaccine efficacy against an emergency room or urgent care visit was 87 percent, and efficacy against hospitalization was 91 percent, according to a study released by the CDC on Feb. The reason to get a second booster is similar to the reason to get a first: There’s evidence that after a certain amount of time, protection provided by vaccination or prior infection wanes. ![]() To help clear up some of the confusion about who should get the second booster sooner, the CDC has offered some guidance. The agency’s recommendation says that eligible people can choose to get a second booster, but it does not yet say that people “should” get one. The CDC acknowledges that some people may want to get one as soon as possible, while others may want to wait longer. There’s a significant amount of research showing that boosters lower the risk of infection, serious disease, hospitalization, and death.īut the recommendation for a second booster dose is not yet as strong. adult residents that was administered from April 7 to April 18 ( PDF link).Īnyone who is eligible for a first booster dose should get one, according to the CDC. But people may also be holding off on a fourth dose because it’s not yet clear they should get it yet.Īmong people eligible for a second booster based on age, 11 percent have already received a second booster, and 42 percent say they are very likely to do so, according to a nationally representative CR survey of 2,224 U.S. With each additional vaccine dose authorized, there has been less uptake, says Gregory Poland, MD, director of the Vaccine Research Group at the Mayo Clinic in Rochester, Minn. ![]()
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