"Coronavirus" can mean a few different diseases. We have had a type of coronavirus in the USA before, called "SARS." Now, this coronavirus is also a type of SARS. This type of coronavirus is called COVID-19, and COVID-19 causes SARS-COV-2. Like how HIV causes AIDS, COVID-19 causes SARS-COV-2. I am not an expert, so if an expert sees this and some of my information is incorrect, I'm sorry, and please tell me. Hopefully that helped!