• Why is the disease being called coronavirus 2019, COVID-19?

On February 11, 2020 the World Health Organization announced an official name for the disease that is causing the 2019 novel coronavirus outbreak, first identified in Wuhan China. The new name of this disease is coronavirus disease 2019, abbreviated as COVID-19. In COVID-19, ‘CO’ stands for ‘corona,’ ‘VI’ for ‘virus,’ and ‘D’ for disease. Formerly, this disease was referred to as “2019 novel coronavirus” or “2019-nCoV”.

https://www.cdc.gov/coronavirus/2019-ncov/index.html

• What is the difference between Social Distancing, Quarantine, and Isolation?

https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/social-distancing.html