Keidy Ventura, 17, receives her first dose of the Pfizer COVID-19 vaccine in West New York, N.J. Pfizer has asked federal regulators to expand the eligibility for booster shots to include 16- and 17-year-olds.
A registered nurse stirs a nasal swab in testing solution after administering a COVID-19 test in Los Angeles, Calif. Increased testing could help in efforts to detect and track new variants like omicron.
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A COVID-19 antiviral pill called molnupiravir from Merck and Ridgeback Biotherapeutics is being considered by the Food and Drug Administration for emergency use in the coronavirus pandemic.
Merck & Co Inc./Handout via Reuters
Dr. Mehmet Oz, seen here in a December 2019 file photo, joins the Republican field of possible candidates aiming to capture Pennsylvania's open U.S. Senate seat in next year's election.
Dutch health authorities say they've identified early cases of the new omicron variant of the coronavirus — including one from a sample taken the week before South Africa raised the alarm about the mutated variant. Other cases were found through tests at Schiphol airport in Amsterdam.
Kenzo Tribouillard/AFP via Getty Images
South African President Cyril Ramaphosa in August. He called on Western nations on Sunday to scrap travel restrictions placed on southern Africa to stem the spread of the omicron variant. "The prohibition of travel is not informed by science nor will it be effective in preventing the spread of this variant," he said.
A man receives a dose of a COVID-19 vaccine in Soweto, Johannesburg, South Africa, on Monday. The omicron variant, first identified in South Africa, has now spread to at least a dozen other countries.