HEALTH

U.S. expands COVID-19 boosters, with third dose of Pfizer to people as young as 16

Dec 9, 2021, 9:55 AM

FILE - A medical staff member prepares the Pfizer-BioNTech COVID-19 vaccine at Tudor Ranch in Mecca...

FILE - A medical staff member prepares the Pfizer-BioNTech COVID-19 vaccine at Tudor Ranch in Mecca, Calif. on Jan. 21, 2021. In the early days of 2021, television screens were filled with images of people across the country getting shots of the new COVID-19 vaccine. (AP Photo/Jae C. Hong, File)

(AP Photo/Jae C. Hong, File)

The U.S. is expanding COVID-19 boosters, ruling that 16- and 17-year-olds can get a third dose of Pfizer’s vaccine.

The U.S. and many other nations already were urging adults to get booster shots to pump up immunity that can wane months after vaccination, calls that intensified with the discovery of the worrisome new omicron variant.

On Thursday, the Food and Drug Administration gave emergency authorization for 16- and 17-year-olds to get a third dose of the vaccine made by Pfizer and its partner BioNTech — if it’s been six months since their last shot.

“Vaccination and getting a booster when eligible, along with other preventive measures like masking and avoiding large crowds and poorly ventilated spaces, remain our most effective methods for fighting COVID-19,” Dr. Janet Woodcock, acting FDA commissioner, said in a statement.

There’s one more step: The Centers for Disease Control and Prevention must formally recommend the boosters for this age group and a decision is expected soon.

The Pfizer vaccine is the only option in the U.S. for anyone younger than 18, either for initial vaccination or for use as a booster. It’s not yet clear if or when teens younger than 16 might need a third Pfizer dose.

“The booster vaccination increases the level of immunity and dramatically improves protection against COVID-19 in all age groups studied so far,” BioNTech CEO Ugur Sahin said in a statement.

Vaccinations for children as young as 5 just began last month, using special low-dose Pfizer shots. By this week, about 5 million 5- to 11-year-olds had gotten a first dose.

The extra-contagious delta variant is causing nearly all COVID-19 infections in the U.S., and in much of the world. It’s not yet clear how vaccines will hold up against the new and markedly different omicron mutant. But there’s strong evidence that boosters offer a jump in protection against delta-caused infections, currently the biggest threat.

Complicating the decision to extend boosters to 16- and 17-year-olds is that the Pfizer shot — and a similar vaccine made by Moderna — have been linked to a rare side effect. Called myocarditis, it’s a type of heart inflammation seen mostly in younger men and teen boys.

The FDA said rising COVID-19 cases in the U.S. mean the benefits of boosters greatly outweighed the potential risk from the rare side effect, especially as the coronavirus itself can cause more serious heart inflammation.

Health officials in Israel, which already gives boosters to teens, have said the side effect continues to be rare with third doses.

A U.S. study this week offered additional reassurance. Researchers from children’s hospitals around the country checked medical records and found the rare side effect usually is mild and people recover quickly. The research was published Monday in the journal Circulation.
___
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.

We want to hear from you.

Have a story idea or tip? Send it to the KSL NewsRadio team here.

Health

Taylor Farms Mexico's facilities in Doctor Mora, Guanajuato state, Mexico, Monday. The facility was...

Siddhi Mahatole, Reuters

Taylor Farms temporarily shuts Mexico facility as US cyclosporiasis cases rise, source says

Taylor Farms on Thursday temporarily closed its Mexico facility linked to cyclosporiasis cases. The CDC has reported 4,173 cases across 41 states.

10 hours ago

Utah Deaf mentor and performer Jojo Savea is one of the American Sign Language performers bringing ...

Eric Cabrera

Deaf Utah performer, interpreter, helps kids experience favorite shows in a new way through ASL

Utah mentor and performer Jojo Savea is one of the American Sign Language performers bringing popular children's programming, including "CoComelon," to deaf audiences.

1 day ago

Secretary of Health and Human Services Robert F. Kennedy Jr. and President Donald Trump at the Whit...

Ahmed Aboulenein, Reuters

US pauses $1B in Medicaid payments to California, Minnesota

The Trump administration is pausing $1 billion in Medicaid payments to California and Minnesota ​over "suspected fraud and noncompliance," Health Secretary Robert F. Kennedy Jr. said on Tuesday.

2 days ago

Paris Hilton protests outside the Provo Canyon School, where she says she suffered abuse as a teen,...

Logan Stefanich, KSL

State revokes license of Provo Canyon School’s Provo campus amid lawsuit, abuse allegations

Provo Canyon School's Provo campus license was revoked Friday by the state of Utah following continued allegations of abuse and numerous compliance citations.

7 days ago

A Taco Bell fast food restaurant is shown Tuesday, July 14, 2026, in Taylor, Mich. Federal health o...

Bill Barrow and Mike Stobbe, Associated Press

Lettuce at Taco Bell in 5 states confirmed as a source of diarrhea-causing parasite

Federal health officials have identified lettuce from Mexico served at Taco Bell locations across five U.S. states as a source of the widespread outbreak of diarrhea-causing parasite cyclospora.

7 days ago

Walid Mawad arranges berries at a fruit stand in Cleveland, Ohio, July 16, 2025. Produce that has n...

Lois M. Collins, Deseret News

CDC warns of ‘very big shift’ as cyclosporiasis cases surge

Cyclosporiasis cases have surged in the US, and the CDC said states are reporting an "unusually high number" of circulating cases. The agency also said that outbreaks in four states are likely linked.

8 days ago

Sponsored Articles

...

Bear Lake

Road trip ready: How Bear Lake became the go-to destination for Western U.S. travelers

Whether you are chasing pristine beaches, fresh raspberry shakes, or endless water sports, this sponsored guide—brought to you in partnership with Bear Lake —uncovers everything you need to plan the ultimate getaway.   There’s nothing quite like the thrill of hopping in the car with your favorite snacks in tow and heading out for a […]

...

Harper Clinic

A new standard of care: How Harper Clinic’s IOP is changing the face of mental health treatment in Utah

This article is sponsored by Harper Clinic, a Utah-based clinic offering FDA-approved TMS therapy for treatment-resistant depression.    Utah’s mental health crisis is leaving many residents caught in an uncomfortable middle ground: struggling too much for weekly therapy alone, but unable to step away from work, parenting or daily life for inpatient treatment. As demand […]

...

Harper Clinic

Breaking free from depression: How Harper Clinic’s TMS Therapy can help

This article is sponsored by Harper Clinic, a Utah-based clinic offering FDA-approved TMS therapy for treatment-resistant depression.    The weight of depression is real. Many people spend years fighting it, adjusting medications, managing side effects and wondering if this is simply how life is going to feel.   According to the World Health Organization, depression affects […]

mental health...

Andrew Adams, KSL

Library discussions bring men’s mental health to the surface

Therapists say it’s common for men to repress things like trauma, grief, stress and anxiety. Now, a new weekly series of discussions aims to help men bring it all to the surface.

...

Bear Lake Convention & Visitors Bureau

Cozy up in Bear Lake: Discover the magic of a winter getaway

SALT LAKE CITY – The holiday season shines brightest when time slows down and loved ones gather. Gifts, decorations and festive music come and go, but shared experiences tend to last much longer. Research supports that idea. Dr. Theresa E. DiDonato told Psychology Today that vacations can strengthen relationships by creating meaningful time away from daily […]

...

Harper Clinic

Rewriting the path to healing: Inside Harper Clinic’s whole-person mental health model

OREM — A few decades ago, you’d have had a hard time finding a doctor to treat both your mind and body; And a century ago, you’d have been hard-pressed to find a doctor to treat your mind at all. Today, medical professionals are understanding more and more the undeniable connection between the body and […]

U.S. expands COVID-19 boosters, with third dose of Pfizer to people as young as 16