The fast-moving variant poses new puzzles in viral transmission, severity and evolution.
That’s good news, because although T cells are slower than antibodies to respond to a recurring threat, they’re effective once they get going. This helps to stop breakthrough infections from becoming severe.
The latter is what’s happened with each variant of concern so far. “It suggests that there’s a huge amount of plasticity in the virus,” says Lucy Thorne, a virologist at University College London. “It’s got different evolutionary options.” As the study authors note, changes in cell-culture dishes don’t necessarily mean that the virus would be any better at infecting animals or people; it’s possible the mutations might make it inept in other ways. Thus, this type of workResearchers can also put pressure on the virus in the lab, allowing it to evolve in the presence of antibodies or antiviral drugs.
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
Omicron’s lasting mysteries: four questions scientists are racing to answerThe fast-moving variant poses new puzzles in viral transmission, severity and evolution.
Consulte Mais informação »
COVID Omicron News: South Korea has deadliest day of pandemic amid omicron surgeThe country reported 112 fatalities in the latest 24-hour period.
Consulte Mais informação »
Fourth dose of COVID vaccine offers only slight boost against Omicron infectionIsraeli trial shows a fourth vaccination raises antibody levels but provides little extra protection against SARS-CoV-2 infection.
Consulte Mais informação »
As 'stealth omicron' advances, scientists are learning more - New York Amsterdam NewsThe coronavirus mutant widely known as “stealth omicron” is now causing more than a third of new omicron cases around the world, but scientists still don’t know how it could affect the future of the pandemic.
Consulte Mais informação »
Photos: Fur Rondy sled dog races start with fanfare and slushy conditionsPhotos: Fur Rondy sled dog races start with fanfare and slushy conditions in downtown Anchorage
Consulte Mais informação »
S. Korea has deadliest day of pandemic amid omicron surgeSouth Korea has seen its deadliest day of the pandemic, reporting 112 fatalities in the latest 24-hour period, as it grapples with a wave of coronavirus infections driven by the fast-moving omicron variant
Consulte Mais informação »