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Bookmark or Share- Coronavirus disease 2019 (COVID-19) - Symptoms and causesCOVID-19, also called coronavirus disease 2019, is an illness caused by a virus. The virus is called severe acute respiratory syndrome coronavirus 2, or more commonly, SARS-CoV-2. It started spreading at the end of 2019 and became a pandemic disease in 2020. Coronavirus Enlarge image.
- Symptoms of COVID-19 | COVID-19 | CDC - Centers for Disease Control and ...People with COVID-19 have a wide range of symptoms ranging from mild symptoms to severe illness. Symptoms may appear 2-14 days after exposure to the virus. Symptoms may start as mild, and some people will progress to more severe symptoms.
- Severe COVID-19: Symptoms of Moderate to ... - PfizerApproximately 80% of those who test positive for COVID-19 have mild to moderate illness. 1 But adults 50 and older and people of any age with certain underlying health conditions are at high risk of progression to severe COVID-19.
- Severe COVID-19 may lead to long-term innate immune ...Severe COVID-19 may cause long-lasting alterations to the innate immune system, the first line of defense against pathogens, according to a small study funded by the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health.
- Severe COVID-19: Symptoms, Risk Factors & Prevention - PfizerWhat is Severe COVID-19? COVID-19 can affect people differently. Some people experience an asymptomatic or mild infection, while others can face serious and possibly even life-threatening symptoms and complications, commonly referred to as severe COVID-19. 1,2.
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