What are the similarities between the coronavirus and the covid-19?

corona viruses: The name of the virus that causes Coronavirus disease (COVID-19) is severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). There are 7 identified coronaviruses that infect people to include common human coronaviruses as well as MERS-CoV (Middle East Respiratory Syndrome) and SARS-CoV (Severe Acute Respiratory Syndrome /SARS). REF: https://www.cdc.gov/coronavirus/2019-ncov/index.html