Health officials are trying to make far-reaching policy decisions, including on booster shots, based on little biological certainty of which viral variants will be dominant.
Tag: Coronavirus Delta Variant
During the Omicron Wave, Death Rates Soared for Older People
Last year, people 65 and older died from Covid at lower rates than in previous waves. But with Omicron and waning immunity, death rates rose again.
Covid and Omicron Variants: Lessons From Gamma, Iota and Mu
Studying the coronavirus variants that have faded away could help us prepare for what comes next, scientists say.
A Glaxo antibody drug is restricted in the U.S. Northeast as an Omicron subvariant spreads.
The move leaves doctors in the region with one less option to treat high-risk Covid patients.
Austria Abandons Sweeping Vaccine Mandate, Citing Milder Omicron Cases
Despite high caseloads, the number of Covid patients in intensive-care-unit beds remains steady, prompting the country to rethink its approach, at least for now.
Walmart Says Vaccinated Workers No Longer Have to Wear Masks
The retailer said it was taking action after governors from Connecticut to California ended mask mandates recently.
World Surpasses 400 Million Confirmed Covid Cases
The total has doubled in only six months as the most recent surge took a toll.
New York Deer Infected With Omicron, Study Finds
White-tailed deer on Staten Island have become the first wild animals with documented Omicron infections. The coronavirus has now been found in deer in 15 states.
Is the Coronavirus in Your Backyard?
White-tailed deer could become a reservoir for the virus, putting people and animals at risk, health experts say.
As Omicron Crests, Booster Shots Are Keeping Americans Out of Hospitals
Extra vaccine doses were expected to lower infection rates. But the shots also seem to be preventing severe illness caused by the new variant, the C.D.C. reported.