Fauci says multiple preliminary studies find omicron is less severe than delta

NIH National Institute of Allergy and Infectious Diseases Director Anthony Fauci addresses the daily press briefing at the White House in Washington, January 21, 2021. Jonathan Ernst | Reuters White H...

CDC adds testing guidance to shortened Covid isolation recommendation after facing criticism

People wait in line for COVID-19 testing at Kedren Community Health Center on Wednesday, Dec. 29, 2021 in Los Angeles, CA. Gary Coronado | Los Angeles Times | Getty Images The U.S. Centers for Disease...

Omicron makes up 95% of sequenced Covid cases in U.S. as infections hit pandemic record

At the Covid testing site on Broadway in Santa Monica, the wait was at least 45 minutes long even with an appointment on Monday, Jan. 3, 2021. Carolyn Cole | Los Angeles Times | Getty Images The omicr...

Biden doubles U.S. order of Pfizer Covid treatment pills, speeds delivery as omicron rages

A Pfizer employee checks the boxes containing Paxlovid, COVID-19 treatment pills, at a distribution facility in Memphis, Tennessee, in this undated handout picture. Pfizer | Reuters President Joe Bide...

CDC shortens waiting period for Pfizer Covid boosters to 5 months

UNITED STATES – OCTOBER 4: Hattie Pierce, 75, receives a Pfizer covid-19 vaccine booster shot from Dr. Tiffany Taliaferro at the Safeway on Capitol Hill in Washington, D.C., on Monday, October 4...

FDA expands Pfizer booster eligibility to kids ages 12 to 15, authorizes third shots at 5 months

Dash Hunger, 12, receives the Pfizer-BioNTech Covid-19 Vaccine at the Jewish Federation/JARC’s offices in Bloomfield Hills, Michigan, on May 13, 2021. Jeff Kowalsky | AFP | Getty Images The Food...