The thing about physicians... some of the basics never change but medical and scientific advances continue to grow at a rapid rate. If the physician doesn't have access and/or the motivation to keep up with the growing body of knowledge... their expertise falls behind rapidly.

Given this virus is so new and the effects still not fully understood... I'd be real skeptical of anything a retired doctor had to say on it.

Hell even the so called current "experts" can't agree on much...