A certified medical assistant prepares doses of the Pfizer-BioNTech COVID-19 vaccine at a vaccination center at the University of Nevada, Las Vegas. The US took a major step in the pandemic this week by clearing the Pfizer vaccine for youth ages 12-15. (Image via AP Photo/John Locher, File)
This Duke Pediatrician Explains Why the Pfizer Vaccine Is Safe for Kids 12 and Up

Here’s what to know about how the Pfizer vaccine works in adolescents, and what to expect.

Junior Molly Day gets her first Pfizer COVID vaccine at Ridley High School in Delaware County, Monday afternoon May, 3, 2021, as part of a clinic for students age 16-18. "It feels good, I'm happy I can protect myself and others," Day said after she got the shot. (Daily Times Photo via Getty Images/Pete Bannan)
FDA Approves Pfizer Vaccine for Kids 12 and Up

The FDA expanded its emergency use authorization of the Pfizer vaccine on Monday, taking a huge step in the overall vaccination effort and bringing incalculable relief to many parents.