COVID-19, a disease caused by a new strain of coronavirus, SARS-CoV-2, has infected very large numbers of people in a short period of time (since it was first recognised on 01/12/2019). It appears to be highly infectious with a significant mortality rate. Current estimates suggest it would be around 2%, much less than the fatality rate of other human Coronaviruses, such as SARS (9.5%) and MERS (37.1%), but greater than that of the seasonal influenza virus (0.04 – 0.088%).

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