I have A) direct relationships with the people who study viral biodefense at USAMRIID and serve on the government panels, and they were very surprised to hear about these cables. They didn't find the authors credible at all. One is an entrepreneur and the other a career diplomat.
And for all those who don't have a PhD in the subject or know the people who know people, B) it's detailed closely in this washington post article who was there and what they wrote:
https://www.google.com/amp/s/www.washingtonpost.com/national...
https://www.washingtonpost.com/opinions/2020/04/14/state-dep...
The first article lists the “leaders” of the delegation only. Diplomatic business always needs diplomatic leaders, so it doesn’t tell us anything of the Doctors who were with them. Reading the rest of it, there’s a very convincing case that China is hiding something. The doctors that have “disappeared” are especially troubling as well as the information lockdown they imposed.