Physicians are professionals trained in the diagnosis and treatment of disease (broadly speaking). They are not scientists. In many ways, getting an opinion from a physician about how to deal with an epidemic is akin to getting an opinion on bridge design from a builder, not a civil engineer.
Doctors are members of a very respected profession. Unfortunately, that *can* lead to them (and other health professionals) being given greater latitude when it comes to opinions on things they really aren't experts in.