If it was being developed as a biological weapon you would tend to assume there's likely progress on how to defend against it by those who created it so you could hope to leverage that work to get a head start on vaccines and so forth. No one could force China to hand that work over but they could certainly pressure them in full force, including some of their allies that may also be suffering.
Overall, there's really not much in terms of actionable information to follow through with. It might help states target spies to keep a closer eye on these scenarios and prompt a better global response in the future.