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  1. 2021年12月15日 · The omicron variant is rapidly multiplying. Learn about the omicron Covid variant, including omicron symptoms and how effective vaccines are against omicron.

  2. 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...

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  4. 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...

  5. 2022年4月7日 · Health officials determined that the omicron Covid variant caused less serious illness than previous variants, but what the virus lacked in severity it made up for in sheer contagiousness. Deaths...

    • Nigel Chiwaya
  6. 2022年1月7日 · Isolation refers to the five-day period after a person tests positive, when that person should stay away from others, including family members. The CDC said people are most contagious a day or two...

  7. 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...

  8. 2022年1月28日 · Omicron may be the dominant U.S. Covid strain right now, but others are still circulating — and there is also the possibility of catching another variant as yet to be identified.