No amount of information from people with knowledge, education, and actual experience is enough to convince the willfully ignorant. That's my polite version of Ron White's famous quote.
This is from the Toronto Globe and Mail, written by the retired Chief Medical Officer for The Province of Ontario, who was also Chief of Staff at a major Toronto hospital during the SARS epidemic.
I think he checks all 3 of your boxes and I agree with his assessment.
There are plenty of other experts who vehemently disagree with him, but he's certainly qualified as an expert, and his opinion is still rational and well expressed, as opposed to the "OMG THIS IS THE FLU WASH YOUR HANDS THE ILLUMINATI CREATED THIS AS A DISTRACTION" tin foil hat crowd. Those are the willfully ignorant.