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  1. 2021年12月21日 · What are omicron symptoms: Omicron subvariants may have different symptoms than previous Covid strains. What to look out for. Symptoms of omicron and its subvariants are similar, doctors say.

  2. 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.

  3. 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...

  4. 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
  5. 2022年6月16日 · The omicron variant may be less likely to lead to long Covid symptoms after infection compared to other variants, according to a study by British researchers.

  6. 2021年11月30日 · The omicron Covid variant's mutations sparked immediate concern among researchers. Mutations on the spike proteins of the variant caught the attention of researchers who have been on the lookout ...

  7. 2022年1月25日 · Pfizer starts clinical trial for omicron-specific Covid vaccine. The study will look at how well the modified vaccine works in unvaccinated people, as well as people who are already vaccinated and ...

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