Why do you assume that would be the result? Instead of fessing up at the beginning, in which case, the worst that would have happened is that China would "lose face" over the carelessness of their lab workers, China actively hid the leak as long as they could and then blamed it on the wet market and destroyed the evidence from the lab so they could hide the data needed to formulate a cure. But the Chinese are terrified of "losing face". It's just about the worst thing that can ever happen to them and they are willing to lie, cheat, steal to avoid it*. So, because they lied to the world, we were months behind in having the data required to find a cure. And to top it all off, they knew that it was a rapid spreading virus and so China went out on the world market and bought up all the PPE they could lay their hands on for themselves. Screw the rest of the world. But even worse than that was that they shut down internal travel between Wuhan and the rest of China but left the international flights open so the locals could easily go forth and spread the virus around the world. If China had stepped up and done the right thing from the beginning, they could easily have saved millions of lives around the world as we would have been better able to control it if we could have kept it in Wuhan and if we knew the genetic code early on,we would have been that much further ahead to developing a cure.
* A funny story. Years ago at the bridge club we started finding scores missing occasionally. This went on for weeks. There were usually 27 hands played for a game but 2 or even 3 score sheets would go missing. The director finally tracked it down to starting shortly after a new player (Chinese) started coming to the club. Plus it only ever happened in games she played. He confronted her quietly because he didn't want to embarrass her. She confessed to being the culprit. If she thought her result on a particular hand was embarrassing, she would pocket the score sheet rather than handing it to the director so he could enter it on the recap sheet used to score the game. He told her that if she stopped, all would be forgiven and he wouldn't mention the situation to the group. So, she ended up playing with us for a few years until she moved away.