https://apnews.com/007f27029b6c5ed830725f69a2712117

Pfizer is seeking U.S. approval of a booster dose of its two-shot COVID-19 vaccine.

The drugmaker said Wednesday that it has started the application process for a third dose of its vaccine for people ages 16 and older. The company said it will complete the application with the Food and Drug Administration by the end of this week.