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  1. 2022年3月8日 · Reuters. Tue, Mar 8, 2022, 11:35 AM 1 min read. March 8 (Reuters) - The BA.2 sub-variant of Omicron was estimated to be 11.6% of the coronavirus variants circulating in the United States as of...

  2. 2022年3月22日 · UPDATED with latest: One week after the World Health Organization reported that the BA.2 Omicron variant had become the dominant strain globally, accounting for 75% of new cases sequenced, the...

    • Tom Tapp
  3. 2022年3月16日 · Wed, Mar 16, 2022 4 min read. In recent weeks, there have been frequent reports about the rise of the more transmissible Omicron subvariant BA.2 around the world. BA.2 now makes up nearly all...

    • Tom Tapp
  4. 2022年2月24日 · BA.2佔了丹麥紀錄Omicron病例中的88%,同時成為多國主流感染株。 根據研究從2021年11月至2月,Omicron成為主流感染株後,發現180萬個個案中,有1739個案例是重覆感染Omicron病毒,兩次感染的相隔約20至60日。 而再感染的情況多發生在年輕及未接種疫苗的患者身上。 而重覆感染一般只會造成輕微症狀,病人無需入院,亦未有造成死亡。...

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  5. 2022年4月19日 · Tue, Apr 19, 2022 1 min read. (Adds background) April 19 (Reuters) - The BA.2 sub-variant of Omicron and its sublineage BA.2.12.1 is estimated to make up more than 90% of the coronavirus...

  6. 2022年3月29日 · The more transmissible strain of Omicron, BA.2, is now the dominant Covid variant in the United States. In just the last week, it has risen from 35% of all new cases genetically sequenced to 55%,...

  7. 2022年3月29日 · Tue, Mar 29, 2022, 6:59 AM 1 min read. March 29 (Reuters) - The BA.2 sub-variant of Omicron was estimated to be more than half or 54.9% of the coronavirus variants circulating in the United...

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