> I'm curious how this would've progressed if the virus had originated in the US instead and how much better it would've been handled.

The federal and local governments in the U.S. do not have the same power as CCP to suppress the "rumor". The eight doctors would not have been reprimanded by the local police for discussing the new virus in private online groups. The Trump administration would not have power to tell the CDC to shut up. The Trump administration would not have power to force the CDC to under-report counts. The states would not cooperate with the federal government to under-report counts.