No we wouldn't have been. Thousands of people are traveling perfectly legally every day on flights to and from Mexico City (and Hong Kong, and any other city you care to name.) There's a day or so where someone has no symptoms and then another day or so where it's basically a cold. We've never been stopping people stepping off airplanes with a cold.
It's amazing that people think the ONLY movement of people between the US and Mexico is an illegal coming across the southern border.
But, never let facts get in the way of political axe-grinding, I guess.
1918 flu pandemic.
http://virus.stanford.edu/uda/
but themn on flights is less likely to be poor and the poor tend to have teh higher sickness rate, not health care, poor sanitation, crowded living.
if we had a sealed boarder already, when anoutbreak like this happens, we simply ban the international flights and ships from entering the USA.
with the open boarder, we got a much bigger job to tackle,a dn no time to spare. that is the problem. we need to stop illegal and legal immigration mexico until this thing is done. also at least air passengers could be put in a 48 hour qurentine (or what ever incubation time is required) before release from the airport. cant do that when they are running trhu the desert, thru a tunnel, or hiding in the back of a truck. and yes if an airpassenger displays sickness sings, at least we can address that then and there. the illegal can be coming over, cuoghing up ineddible flem, fever, open soars what ever, and no one is here to intercept him.
the worst are the illegals by far, but we also got to control the airports and harbours
The other point, though it isn’t 100% clear to me yet, is that it seems that the virus was first detected in the U.S. - perhaps in a less-lethal form - then spread to Mexico and evolved slightly. I haven’t seen exact dates yet, but it seems to me by inference that these California and Texas cases were FIRST.
I’m definitely for protecting our borders, but I very much agree with your analysis.