World
Pfizer expands vaccine tests in children under 12
Pfizer is expanding its COVID-19 vaccine testing in children younger than 12, AP reported.
After a first-step study in a small number of young children to test different doses, Pfizer is ready to enroll about 4,500 young volunteers at more than 90 sites in the US, Finland, Poland and Spain.
The vaccine is already authorized for emergency use in ages 12 and above in the US and European Union.
Enrollment of children aged 5-11 began this week. The children will receive two vaccine doses of 10 micrograms each — a third of the teen and adult dose — or dummy shots.
Enrollment of children as young as 6 months will start in a few weeks using 3 micrograms per shot.
