Third doses of Pfizer and Moderna, distinct from boosters, are recommended for specific immunocompromised people age 12 and older. These recipients may also get a booster — a fourth dose — at least six months after the third shot, according to CDC guidance. The agency recommends that children ages 5 to 11 who are immunocompromised get a third Pfizer dose 28 days after their second shot.
It’s safe and effective to choose which vaccine you receive as a booster.
Pfizer’s vaccine for children ages 6 months to 4 years is a three-shot series — with the first two shots three weeks apart and the final shot at least two months later, according to CDC recommendations. The Pfizer vaccine for children ages 5 to 11 is given in two shots, three weeks apart.
Moderna’s vaccine for children is a two-shot series given over the course of a month, with smaller doses given to children younger than 12 years old. Immunocompromised children can also receive a third dose of Moderna’s vaccine at least four weeks after their second.
Doses for kids are available at doctors’ offices and certain retail pharmacies. Call your doctor or check pharmacy websites.
Some vaccination sites ask for proof of identity or eligibility. Bring a driver’s license or other state-issued ID that shows your name, age and state residency, along with your health insurance card, if you have one. You won’t be charged for the initial vaccine series, or a booster shot, but the vaccine provider may bill your insurer a fee for administering the vaccine. After your first shot, bring your vaccine card for subsequent shots.
Most residents and staff of Washington’s long-term care facilities were offered first and second doses through a federal program that provided free on-site vaccinations in late 2020 and early 2021. The program has ended, but the federal government continues to allocate COVID-19 vaccines and boosters to pharmacies that are partnered with long-term care facilities to provide vaccinations, mainly on-site.
Facilities that don’t have a pharmacy partner are encouraged to work with local or state health departments — or the federal government, if need be — to provide vaccinations.
You should not have any out-of-pocket cost for getting the vaccine or a booster. AARP fought to make sure the federal government is covering the cost of the vaccine itself.
Scammers are purporting to offer COVID vaccines and treatments and trying to charge for them. AARP's Fraud Watch Network is tracking the latest scams.
You should get a small white card at your vaccination appointment with your name, birth date, name of the vaccine you received and the date it was administered. If you receive the Pfizer or Moderna vaccine, bring your card when you get your second shot.
You may need your vaccine card to schedule a third vaccine dose, for certain immunocompromised people, or a booster shot. You may also need it for certain kinds of travel or other activities and may want to take a photo of it with your smartphone for your own records. But experts warn that posting a photo of your card to social media could make you vulnerable to identity theft.
If you’ve lost your vaccine card, call the site where you were vaccinated to request a new one or a copy of your vaccination record. You can also contact your state health department to request a replacement card or a copy of your record.
All three vaccines reduce the risk of COVID-19 infections and are highly effective at preventing severe illness and death from the disease. But no vaccine is 100 percent effective, and breakthrough infections can occur post-vaccination.
This guide, originally published Jan. 22, 2021, was updated on June 24, 2022, with new information on vaccines for children.
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