COVID-19 isn't even the "official" name for it - that's the name that was coined by WHO. The "official" name, as established by the ICTV (International Community on Taxonomy of Viruses) is "SARS-CoV-2". The WHO didn't like that name because it sounds too scary:
Naming the coronavirus disease (COVID-19) and the virus that causes it
An explanation of the official names for the corona virus disease (COVID-2019) and the virus that causes it.
www.who.int