I think the wuflu is evidence of how strong globalism was at the time. Nobody wanted to halt air traffic. So there were multiple waves of the virus coming in. The small one was the initial China travellers. Most countries were able to deal with it. Some like Europe were completely decimated by the virus. And then we realised it wasn't enough just to travel ban China. The truth is the answer was a full travel ban, and if we had done this in Jan / Feb the virus would have been defeated. The WHO wanted open borders with temperature checks. Its not only bad advice but its criminally negligent advice. They actively fought against the only decision that could have prevented this pandemic.