While generally safe, some side effects can occur. These may include drowsiness, stomach-related problems, or dry mouth.

A closeup of a vial of the biotechnology company's vaccines. The new dosing schedule includes a 4-dose series for infants starting at 2, 4, 6, and 12–18 months, and a 2-dose series for those 6 ...

Pfizer and BioNTech's COVID-19 vaccine is 100% effective against the virus in children ages 12 to 15, the companies announced in a press release Wednesday. In a placebo-controlled trial of 2,260 ...