All you need to know about CoronaVirus (COVID-19) What is coronavirus disease 2019 (COVID-19)? Coronavirus disease 2019 (COVID-19) is a respiratory illness that can spread from person to person. The virus that causes COVID-19 is a novel coronavirus that was first identified during an investigation into an outbreak in Wuhan, China. Have there been cases of COVID-19 in the U.S.? Yes. The first case of COVID-19 in the United States was reported on January 21, 2020. The current count of cases of COVID-19 in the United States is available on CDC’s webpage at https://www.cdc.gov/coronavirus/2019-ncov/cases-in-us.html. How does COVID-19 spread? The virus that causes COVID-19 probably emerged from an animal source, but is now spreading from person to person. The virus is thought to spread mainly between people who are in close contact with one another (within about 6 feet) through respiratory droplets produced when an infected person coughs or sneezes. It also may be possible ...