Pfizer INC Has Said It Will Begin Testing Its Vaccine In A Bigger Group Of Children Under Age 12

Pfizer INC has said it will begin testing its vaccine in a bigger group of children under age 12 after selecting a lower dose of the shot in an earlier stage of the trial.

The study will enroll up to 4,500 children at more than 90 clinical sites in the United States, Finland, Poland and Spain, the company said.

Coronavirus pandemic has killed over 3.75 million people and infected over 174 million globally.