whatever happened in Wuhan it almost certainly wasn't part of a weapons program although any and all scientific knowledge can be repurposed for military uses, as it has been, ever and always.
But what we do now know is that one of major contenders has a "system" that can deal with a pandemic, as deeply anathemic as the techniques might be to us.
The US in particular cannot, and all a potential attacker would need to do is start sowing disinformation on the internet and the walls would be torn down and a "Barbarians Eat For Free" sign and arrow put up at the open gates.
High minor league contender Russia probably could have, they just chose not to. Probably similar to some of what happened in the US- oligarchs wanted to keep the slaves at work.
Knowledge in such matters might begin a public health protection effort but certainly would be of immediate interest to militaries- both for offensive and defensive purposes.