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  2. Apr 30, 2020 · The early symptoms of SARS and COVID‐19 are very similar, including fever, cough, headache, shortness breath and breathing difficulties. Diarrhea was reported in about 20‐25% of patients with SARS, while intestinal symptoms were rarely described in patients with COVID‐19.

  3. Aug 9, 2023 · Overview. COVID-19 is the disease caused by the SARS-CoV-2 coronavirus. It usually spreads between people in close contact. COVID-19 vaccines provide strong protection against severe illness and death. Although a person can still get COVID-19 after vaccination, they are more likely to have mild or no symptoms.

  4. May 16, 2022 · Introduction. As of November 21st, 2021, over 257 million cases of coronavirus disease 2019 (COVID-19) have been reported, and more than 5 million lives claimed globally [ 1 ]. The disease is...

  5. Overview. More. Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment. However, some will become seriously ill and require medical attention.

  6. Mar 28, 2023 · For more information, regularly check the WHO coronavirus pages. https://www.who.int/covid-19 What is COVID-19? COVID-19 is the disease caused by a coronavirus called SARS-CoV-2.

  7. www.cdc.gov › coronavirus › 2019-ncovAbout COVID-19 | CDC

    COVID-19 (coronavirus disease 2019) is a disease caused by a virus named SARS-CoV-2. It can be very contagious and spreads quickly. Over one million people have died from COVID-19 in the United States. COVID-19 most often causes respiratory symptoms that can feel much like a cold, the flu, or pneumonia.

  8. Apr 24, 2021 · The two genetically similar severe acute respiratory syndrome coronaviruses, SARS-CoV-1 and SARS-CoV-2, have each been responsible for global epidemics of vastly different scales. Although both viruses arose from similar origins, they quickly diverged due to differences in their transmission dynamics and spectrum of clinical presentations.

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