Coronavirus disease 2019 (COVID-19) – Symptoms and causes

February 21, 2025

COVID-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.

https://www.mayoclinic.org/diseases-conditions/coronavirus/symptoms-causes/syc-20479963

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