Jan. 29 (UPI) -- During a briefing Friday of President Joe Biden's COVID-19 Response Team, Dr. Anthony Fauci said the emergence of Brazilian, British and South African variants of the coronavirus is a "wake up call" that mass immunization programs should proceed as quickly as possible.
Fauci, the director of the National Institute of Allergy and Infectious Diseases, made the remarks during the response team's update late Friday morning.