There are only two valid reason why America have been overtakes China when it comes to Covid-19 virus;

1. China is not transparent with the report and have hide some valueble information of how the virus will behave.

2. Or China have created the Covid-19 virus as there biological weapon and have immune there citizen. Look, CoVid19 virus have traveled around the world but it didn't affecting Beijing, Shenzhen, Guanzo, and other Chinese province near Wuhan.