搜尋結果
2021年11月29日 · Track the spread of the variant with the map below. The map was last updated Dec. 15, and will be updated periodically. A WHO report released Sunday said the omicron variant contains a number of...
- Why Is Omicron A Concern?
- Does It Cause More Severe Illness Or Symptoms?
- Is It More Contagious?
- Are Vaccines Effective Against Omicron?
- Where Is It spreading?
- Are Kids at Risk?
Variants like omicron are the biggest threat to any end to the pandemic — and scientists warn that they will continue to emerge as the virus spreads. The omicron variant features more than 30 mutations to the virus’s spike proteins, which cover the outside of the virus and are the main targets of vaccines and treatments like monoclonal antibodies. ...
Evidence so far doesn’t suggest that’s the case, but it may be too early to tell. Early reports suggest that for most people, at least for those who are up to date on their Covid vaccines, omicron appears to result in mild illnessthat can resemble the common cold. Cough, fatigue or tiredness and congestion and runny nose also appear to be prominent...
Most early research suggests that the omicron variant is more contagious than earlier strains of the coronavirus, but a definitive picture of its transmissibility isn’t yet known. Case numbers in hard-hit places, such as South Africa and the United Kingdom, are increasing exponentially, which suggests that the variant is highly transmissible, but r...
Experts have expressed concerns that the variant’s mutations could allow it to dodge some protective antibodies generated by Covid vaccines. Early laboratory studies indicate that it may be somewhat resistant to vaccines, although it probably doesn’t evade them entirely. More research is needed, however, to understand what the preliminary findings ...
Cases have been confirmed in at least 89 countries, according to the World Health Organization. “The reality is that omicron is probably in most countries, even if it hasn’t been detected yet,” WHO Director-General Tedros Adhanom Ghebreyesus said earlier this month. The first case in the U.S. was confirmed Dec. 1 in California. Omicron infections h...
It’s not yet known whether the variant poses a higher risk to infants and children compared to previous variants. Scientists are closely monitoring regions of the world where the omicron variant is spreading widely, including South Africa and the U.K., to better understand its effect on children.
2021年12月21日 · Omicron symptoms: What science tells us about the illness caused by new subvariants. Symptoms of omicron and its subvariants are similar, doctors say. They're all still Covid, and they can...
2022年5月3日 · Coronavirus. What the latest omicron subvariants mean for reinfection risk. In the U.S., the BA.2.12.1 subvariant is gaining a foothold, while South Africa is seeing a surge in cases from two...
- Berkeley Lovelace Jr.
2021年11月30日 · Scientists around the world are racing to characterize the omicron variant, focusing in particular on whether it is more contagious, causes more severe disease or can evade the protection of...
2022年3月30日 · The outbreak, driven by a subvariant known as “stealth omicron,” is testing China’s zero-tolerance strategy, which has minimized cases and deaths compared with countries like the United States...
2022年1月6日 · Omicron appears to be far more transmissible than prior versions of the virus and better able to evade immune protection from vaccines or prior infection, though it seems to cause less severe...
