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  1. View the latest news and breaking news today for U.S., world, weather, entertainment, politics and health at CNN.com.

    • World

      View CNN world news today for international news and videos...

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      View the latest European news and videos from the UK,...

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      View the latest US news, top stories, photos and videos from...

  2. 6 kwi 2022 · Chin-Hong says San Francisco is “super immune” right now, with one of the highest vaccination rates in the country and an antibody boost from recent wave of infections from Omicron’s BA.1 ...

  3. 29 mar 2022 · The highly contagious Omicron subvariant BA.2 is now the dominant coronavirus strain in the United States, causing more than half of all Covid-19 infections last week, the US Centers for...

  4. 17 lut 2022 · The BA.2 virus – a subvariant of the Omicron coronavirus variant – isn’t just spreading faster than its distant cousin, it may also cause more severe disease and appears capable of thwarting some...

  5. 22 mar 2022 · CNN — After weeks in free fall, new Covid-19 cases are starting to level off in the US, as the BA.2 subvariant continues its ascent. BA.2 caused about 35% of cases in the US last week, up...

  6. 16 mar 2022 · As America casts a wary eye on rising cases caused by the BA.2 subvariant in Europe, the immune status of adults over the age of 65 will be a key indicator of how future variants will affect the...

  7. 24 lut 2022 · On the heels of concerning new lab and animal experiments suggesting that BA.2 may be capable of causing more severe disease than the original Omicron strain, two new studies are helping to...

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