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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...
2023年11月10日 · 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 ...
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.
2023年12月19日 · COVID-19 Transmission. 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...
2023年1月3日 · 5 min read. Most people who get COVID-19, the disease caused by a coronavirus called SARS-CoV-2, will have only mild illness. But what exactly does that mean? Mild COVID-19 cases still can make you...
2024年1月23日 · Written by Kathleen Doheny. 4 min read. Jan. 23, 2024 – You’ve got the symptoms, but your test for COVID-19 isn't positive. You’re not alone. JN.1, the now-dominant variant that accounts for nearly...
2023年1月3日 · The main symptom is a deep cough that comes on fast. It can start as a dry, hacking cough, but you’ll usually start noticing mucus. Other symptoms might include: Fatigue. Shortness of breath....
