I believe that in times of outbreak it’s often the case that many countries, not just US, try to contain the spread within their own country by disallowing ent

I believe that in times of outbreak it’s often the case that many countries, not just US, try to contain the spread within their own country by disallowing entrance to people from the offending geography. What’s that to say of the people that are in the midst of it? Harder to tell but prevailing policy sure indicates that countries are self-interested first and foremost.