COVID-19 is a respiratory disease caused by a virus called SARS-CoV-2. It is a communicable disease that started in Wuhan, China. Since its discovery, it has spread around the world and has changed many things. It is a member of the coronavirus family, which includes other viruses that cause different conditions such as cold, flu, severe acute respiratory syndrome (SARS) and middle East respiratory syndrome (MERS). How COVID-19 spreads Covid-19 spreads when fluids or small ...