Deer Could Be a Reservoir of Old Coronavirus Variants, Study Suggests

The Alpha and Gamma variants of the coronavirus continued to circulate and evolve in white-tailed deer, even after they stopped spreading widely among people, a new study suggests. Whether the…

CDC figuring out ‘logistical and legal’ aspects of testing airplane wastewater for coronavirus variants, source says

CNN  —  The US Centers for Disease Control and Prevention is ironing out the “logistical and legal” aspects of testing wastewater from airplanes for coronavirus variants as it continues to…

Why no Pi? Variants are still stuck on Omicron even as coronavirus continues to mutate

CNN  —  You may have heard that there’s a new Omicron spinoff that’s quickly gaining ground in the United States. Maybe you wanted to ask your doctor about it or…

New Booster Shot Targets Covid Variants More Effectively, Pfizer Says

WASHINGTON — A new study by Pfizer and BioNTech suggests that their updated coronavirus booster is better than its predecessor at increasing the antibody levels of people over age 55…

‘Scrabble variants’ now cause the majority of new Covid-19 infections in the US

CNN  —  The Omicron BA.5 subvariant is no longer the dominant cause of Covid-19 infections in the United States, according to estimates released Friday by the US Centers for Disease…

Quick and stealthy new Covid-19 variants are poised to drive a winter surge

CNN  —  A flurry of new Covid-19 variants appears to be gaining traction globally, raising fears of a winter surge. Read moreMost People Don’t Need a Covid Vaccine Booster, New…

U.K. Approves Covid Booster Vaccine That Targets Two Variants

Britain on Monday became the first country to authorize a coronavirus vaccine that targets two variants, the original virus and Omicron, the variant that became dominant over the winter. Half…

Are Covid Vaccines That Defend Against Omicron Variants Too Late?

Roseann Renouf, 77, has grown tired of the current generation of coronavirus shots. Having “never been one for a lot of vaccination,” she decided to forgo the latest round of…

More Omicron Variants Gain Ground U.S., According to C.D.C. Estimates

The Omicron subvariants known as BA.4 and BA.5 now represent 13 percent of new coronavirus cases in the United States, up from 7.5 percent a week ago and 1 percent…

New variants are poised to keep Covid-19 circulating at high levels throughout the summer

The next influx of infections will probably come from the newer Omicron subvariants BA.4 and BA.5, two closely related viruses that were first characterized in South Africa and that landed…