It doesn't necessarily mean war, though. There are ways to get China to pay financially that have nothing to do with outright war. I actually agree with any world leader who says China should make amends - and they should.
If the Wuhan virus was released accidentally, China should have warned leaders and shut down their international travel instead of covering it up, and that allowed the Wuhan virus to spread. If the Wuhan virus was released intentionally (which I still believe is a possibility), that's evil and also on them. Either way, they're responsible for causing death, sickness and financial devastation around the world.
To let China completely off the hook would show unbelievable weakness by world leaders and allow China to do it over and over again. Until China recognizes the world is serious and actions have consequences, they are not going to change and evolve.