Statistical Ambiguities in Epidemics of Coronavirus Disease 2019 (COVID-19)

Coronaviruses are a large group of viruses ranging from the common cold virus to severe acute respiratory syndrome (SARS). Every day, the number of countries affected by the coronavirus has increased, and as the virus progresses, it will likely become an epidemic. Given the increasing infected cases and deaths, it arises to be a challenging problem worldwide (1,2). The epidemic of COVID-19 started from Wuhan, China, in late 2019 and spread to other countries, and at least 1 million people in about 200 countries have been infected, and 165174 have died of 2414617Coronavirus cases at the time of writing (20 April 2020) (3). World statistics of COVID-19 show that the outbreak and mortality rate of this disease is much higher than Influenza A and SARS-CoV virus