*Coronavirus: family of viruses that cause, eg, common cold, MERS, SARS
*Novel coronavirus: a newly discovered kind of coronavirus
*COVID-19: the disease caused by the new coronavirus
*SARS-CoV-2: official designation of virus causing COVID-19
More on the relationships between COVID-19, MERS, and SARS, from @NIH: niaid.nih.gov/diseases-condi…