70COPO said:A flight ban keeps people out. The remainder of your post distracts from the discussion....
As to the vaccine... There can be sizable damage to commerce here in the US in the time needed to get the vaccine ready.
Stop the flights and the threat is greatly reduced near term and commerce here goes on as best as it can.
THEY aren't going to impose any travel restrictions. Political Correctness comes first. American citizens health and piece of mind second. Elections in November.