Which country’s drug control has approved Pfizer-BioNTech COVID-19 booster shot for the older and high-risk population?

A. UK

B. US

C. France

D. Canada

Explanation:

The US Food and Drug Administration (FDA) on September 18, 2021, authorized a single booster dose of the Pfizer-BioNTech COVID-19 vaccine Comirnaty for those aged 65 and older and adults at high risk of severe diseases or high-exposure jobs.