A problem that is occurring is that multiple countries are discovering the first cases in their country were not connected to cases in other countries. There now appears to be multiple patient zeroes, each with the same disease but unconnected.
This is exactly what would be expected from a covert deliberate spread of the infection by introduction in multiple places around the world.
In June 2019, Ft. Detrick, the US primary biological warfare lab, experienced a leak and was shut down. Shortly after this, many places began experiencing massive increases in ILI and pneumonia. Australia suffered an 800% increase in deaths from flu-like illnesses in June 2019, for example.
It seems from the evidence that a biological weapon leaked from Ft. Detrick, and it was then deliberately released around the world.