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

   www.webmd.com › covid › covid-19-symptoms

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   2023年11月10日 · COVID-19 is a respiratory condition caused by a coronavirus. Some people are infected but don’t notice any COVID-19 symptoms (doctors call that being asymptomatic). Most people have mild symptoms...

2. www.webmd.com › a-to-z-guides › what-is-an-intensive-care-unit-icuIntensive Care Unit: What You Need to Know - WebMD

   www.webmd.com › a-to-z-guides › what-is-an-intensive-care-unit-icu

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   Some people have heard of the ICU but don’t fully understand what goes on in an intensive care unit. Read on to learn more about these specialty hospital wards that help treat severe cases and ...