Well, I don't actually have a medical degree, but I do teach medical students in a medical school.
The general idea of science and medicine these days is to strive for objectivity, usefulness, and remove forms of bias, both in terms of the technical nature of the work, and how we treat people in the world. There are two essential problems about terms like "Spanish 'flu" or "China virus".
The first is that they are undescriptive in key ways we want them to be: we want to identify a biological or medical aspect about them. Knowing scientific / medical information about a virus is about a million times more useful when you're treating a sick patient or doing research than knowing the first country in which that disease either originated or became popularised.
Secondly, things like "wherever disease" have always, always tended to be used maliciously to smear other countries. The French called syphilis "the Italian disease" partly to insult the Italians' morality and cleanliness. The British called it "the French disease" and Muslims "the Christian disease" for the same motivation. Science and medicine should not use those terms, because they encourage bias and unnecessary hostility. The covid-19 outbreak has already been used to justify attacks and abuse of people from China. (And also people from other far eastern nations, because your average moron thug couldn't tell the difference between the Chinese, Japanese and Cambodians) This is strictly against the ethics of the medical profession, as per for instance the Declaration of Geneva.
Just in case we ever were under any confusion, it's no weird coincidence that the people who started saying and most aggressively use terms like "China virus" despite it already having a proper name everyone understood, were people invested in a political campaign against China, appealing to a xenophobic-inclined voter base, and trying to head off accusations of incompetence for their own poor efforts in responding to the outbreak.
