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Photo by Mario Tama/Getty Images

Pfizer and BioNTech's coronavirus vaccine is safe and effective in children ages 5 to 11, albeit at a lower dose than adults receive, the companies said in a press release announcing results from a pediatric trial.

Why it matters: The trial results are a much-needed source of hope for families with elementary school-aged children, who currently aren't eligible for a vaccine.

What they found: Children given two doses of the vaccine 21 days apart had comparable antibody responses to people ages 16 to 25 who participated in an earlier trial.

  • The younger children received doses that were a third the size of those administered to people 12 and older.
  • Vaccine side effects were also comparable to trial participants who were 16- to 25-years-old.
  • The data has not yet been submitted for peer review.

What's next: The companies said they "expect to include the data in a near-term submission" to the FDA for emergency authorization.

  • "These trial results provide a strong foundation for seeking authorization of our vaccine for children 5 to 11 years old, and we plan to submit them to the FDA and other regulators with urgency," Pfizer Chairman and CEO Albert Bourla said in a statement.

Go deeper

Oct 22, 2021 - Health

Pfizer says COVID vaccine over 90% effective in kids

Photo: Michael M. Santiago/Getty Images

Pfizer and BioNTech said their COVID-19 vaccine was more than 90% effective at protecting children between the ages of 5 and 11 from symptomatic infections from the virus, according to a study posted online by the FDA Friday.

Why it matters: Pfizer is seeking an emergency use authorization to vaccinate children — one of the last groups of Americans still largely ineligible to receive a coronavirus vaccine.

Oct 22, 2021 - Health

Illinois mandates daycare workers to receive COVID vaccine or weekly testing

Illinois Gov. J.B. Pritzker speaks during a round table discussion with high school students in October 2018. Photo: Joshua Lott/Getty Images

Illinois Gov. J.B. Pritzker (D) announced Friday that all daycare workers in the state will be required to receive the COVID-19 vaccine or or submit to weekly testing.

Driving the news: Pritzker said he was issuing the requirement to protect "babies, toddlers, and young children not yet eligible for the vaccine."

Oct 22, 2021 - Health

CDC director: U.S. may change definition of "fully vaccinated" as boosters roll out

CDC Director Rochelle Walensky. Photo: Greg Nash-Pool/Getty Images

Rochelle Walensky, director of the Centers for Disease Control and Prevention, said Friday the U.S. "may need to update" its definition for what it means to have full vaccination against COVID.

The big picture: The CDC and the FDA have officially approved boosters with every authorized vaccine in the U.S. for people who meet specific requirements. Walensky explained that since not everyone is eligible for a booster, the definition has not been changed "yet."