COVID-19 vaccine second booster: Who needs one and when?

The Food and Drug Administration authorized a second COVID-19 booster for many Americans. Here's a look at who is eligible and when to get it.

UW Medicine says benefit of FDA-approved 2nd booster shot is 'very marginal'

The FDA has authorized a second COVID-19 booster shot for people ages 50 and up, but researchers at UW Medicine believe the benefits are limited.

Moderna says its low-dose COVID shots work for kids under 6; will seek federal approval

Moderna’s COVID-19 vaccine works in babies, toddlers and preschoolers the company announced Wednesday -- and if regulators agree it could mean a chance to finally start vaccinating the littlest kids by summer.

Pfizer seeks approval for 4th COVID-19 booster dose for seniors

Pfizer is expected to request authorization for a fourth COVID-19 vaccine dose for seniors in a move to provide extra protection to the over-65 population that has been hit hardest by the pandemic.

Exercise after COVID-19 vaccine may increase antibodies, study finds

The study demonstrates that 90 minutes of exercise after immunization of the COVID-19 vaccine increases antibody response several weeks later.

Pfizer shot offers nearly no protection against infection in 5- to 11-year-olds

Pfizer's COVID-19 vaccine is effective at preventing hospitalization in children 5 to 11 but offers virtually no protection against infection, even just a month after full immunization.

Seattle, King County to end vaccine verification policy March 1

King County announced that it will end the county's vaccine verification policy to enter restaurants, bars, theaters and gyms on March 1.

Pfizer asks FDA for emergency approval of COVID-19 vaccine for kids under 5

Children 6 months to 5 years old are one step closer to receiving the Pfizer COVID-19 vaccine after the company officially submitted the two-dose regimen to the FDA for emergency approval.

Moderna's COVID-19 vaccine gets full FDA approval

Moderna's COVID-19 vaccine called “Spikevax” has been given full approval from the U.S. Food and Drug Administration.