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2021年11月29日 · First identified by South African scientists, omicron cases have been reported from Australia and Hong Kong to Canada. The first case in the United States was confirmed on Dec. 1. Track the...
- 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 · The omicron variant of the coronavirus was first detected in late 2021. It has since swept the globe, eventually vanquishing other variants including delta. Omicron soon began branching off into...
2022年1月7日 · Coronavirus. Omicron cases could fall just as quickly as they rose, CDC says. Instead of a wave, picture the recent surge in the U.S. as more of an "ice pick," similar to cases in South Africa,...
2022年7月7日 · BA.5, now dominant U.S. variant, may pose the biggest threat to immune protection yet. The FDA recommended that Covid vaccine makers target two omicron subvariants — BA.4 and BA.5 — in new ...
- Aria Bendix
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...
2021年11月30日 · Coronavirus. Why scientists — and much of the world — reacted so quickly to the omicron variant. Mutations on the spike proteins of the variant caught the attention of researchers who have been...
