Pfizer Says Its Vaccine is 100% Effective in Children Ages 12-15

New clinical trials showed that Pfizer's COVID-19 vaccine elicits "100% efficacy and robust antibody responses" in adolescents from 12-15 years old, the drug company announced Wednesday. The trial included 2,260 trial participants; the results are even better than earlier responses from participants ages 16-25.

Pfizer and its vaccine partner BioNTech say they will submit the results "as soon as possible" to the U.S. Food and Drug Administration and the European Medicines Agency, asking regulators to expand their authorizations for the vaccine's use in young people.

Pfizer will submit the data...

Pfizer says its Covid-19 vaccine is safe and 100 percent effective in preventing the illness in teenagers ages 12 to 15.

"This is exactly the news that we hoped to hear," said Dr. Buddy Creech, a pediatric infectious disease expert at the Vanderbilt University Medical Center in Nashville, Tennessee. Creech was not involved in the Pfizer research.

The vaccine, given in two doses three weeks apart, is already cleared for emergency use in people ages 16 and up.

The company plans to request emergency use authorization for 12- to 15-year-olds...