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1. www.webmd.com › covid › covid-omicron-variantOmicron Variant: Symptoms and Treatment - WebMD

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   2023年8月17日 · Omicron is a variant of SARS-CoV-2, the virus that causes COVID-19. It first appeared in November 2021 and quickly became the dominant variant around the world. It spreads faster than previous ...

2. www.webmd.com › covid › coronavirus-strainsCOVID Variants and Strains - WebMD

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   2023年11月15日 · Omicron “stealth” variant (BA.2): Scientists call it Omicron BA.2 as opposed to the original Omicron variant, BA.1. At first, scientists thought BA.2 wasn’t as contagious as BA.1 and would ...

3. 其他人也問了

   Is the new Omicron variant a 'one to watch'?

   • In January of 2023, a new Omicron variant called XBB.1.16 was reported and labeled as “one to watch” by the WHO. Omicron variants seem to cause less serious illness than earlier types of this coronavirus. The COVID-19 vaccines still work well to protect people against hospitalization and death.

   Omicron Variant: Symptoms and Treatment - WebMD

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   How many Omicron variants are there?

   • All are branches of the Omicron strain, which first appeared in Africa in November 2021. It quickly became the dominant strain of the virus in the U.S. An Omicron variant named EG.5, also sometimes called "Eris," is the main version in the U.S. The WHO also was watching six variants to see whether they'd rise to the level of "variants of interest."

   COVID Variants and Strains - WebMD

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   What is Omicron variant Eg5?

   • It quickly became the dominant strain of the virus in the U.S. An Omicron variant named EG.5, also sometimes called "Eris," is the main version in the U.S. The WHO also was watching six variants to see whether they'd rise to the level of "variants of interest." This group is called "variants under monitoring," or VUM.

   COVID Variants and Strains - WebMD

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   What mutations has Omicron gone through?

   • Omicron has gone through several mutations: Omicron “stealth” variant (BA.2): Scientists call it Omicron BA.2 as opposed to the original Omicron variant, BA.1. At first, scientists thought BA.2 wasn’t as contagious as BA.1 and would soon fade away. That didn’t happen, and in January 2022, BA.2 appeared to be at least as easy to transmit as BA.1.

   COVID Variants and Strains - WebMD

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   How many variants of Omicron are there in 2023?

   • As of October 2023, the World Health Organization didn't list any variants of concern spreading. It did list three variants of interest that were circulating. All are branches of the Omicron strain, which first appeared in Africa in November 2021. It quickly became the dominant strain of the virus in the U.S.

   COVID Variants and Strains - WebMD

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   How long is Omicron incubation period?

   • Studies show that the incubation period for Omicron is 3.42 days. This is shorter than the ones for the Alpha, Beta, and Delta variants. How Severe Is Omicron? Omicron typically causes less severe disease than other variants. However, some people may still get very sick, need to be hospitalized, and could die from an Omicron infection.

   Omicron Variant: Symptoms and Treatment - WebMD

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4. www.webmd.com › covid › coronavirus-transmission-overviewHow Coronavirus Is Transmitted: Here Are All the Ways It Can ...

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   2023年12月19日 · By understanding how coronavirus spreads, you can take the right steps so you don't get sick and infect others. COVID transmission rate. Recent data from the World Health Organization (WHO) shows...

5. www.webmd.com › covid › coronavirusCoronavirus & COVID-19 Overview: Symptoms, Risks, ...

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   2022年12月26日 · The Omicron variant, which is now the dominant strain of COVID-19 in the United States, is highly contagious and spreads faster than the original virus.

6. www.webmd.com › covid › covid-19-symptomsCoronavirus Symptoms: Early Signs, Serious Symptoms - WebMD

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   COVID-19 Omicron symptoms are usually mild. They tend to include sore throat, runny nose, and other symptoms similar to a cold. They may not include lower respiratory tract symptoms such as ...

7. www.webmd.com › covid › coronavirus-incubation-periodCovid-19 Incubation Period - WebMD

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   2024年1月7日 · Omicron’s incubation is around 3 days, compared with 4-5 days for earlier strains. This means that if you get infected with the Delta strain, your symptoms may show up much faster.

8. www.webmd.com › covid › covid-treatment-home-hospitalCoronavirus Treatment: At Home, Hospital, Drugs - WebMD

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   2022年12月25日 · Sotrovimab is the only available monoclonal treatment with activity against the Omicron variant. Many clinical trials are underway to explore treatments used for other conditions that could fight...