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Fair. COVID-19 would also work for me. That's used enough that people know immediately what you're talking about.

COVID-19 is a _disease_ caused by SARS-CoV-2, just as AIDS caused by HIV.

Point is, nobody will be confused when you say COVID-19 or more specifically “COVID-19 virus” where context demands it.

I am starting to see it referred to as "C-19," or "C19."