The thing that I don't quite understand or maybe evidence I have yet to see or read is that covid spreads generally far and wide. If Wuhan was ground zero for the infection, I don't understand how it didn't spread outside of the city wider and faster. I know Omicron isn't a good example as it spreads easily but in a week it's moved through individual countries in multiple different geographical areas. Unless China didn't report it, covid should have been in multiple cities in China before they even knew about it and could test for it. Weeks or months is a massively long time in terms of infection spread. It was limited to Wuhan almost too much.