I agree with others, the worrisome part for me is that people that have the virus can be contagious to others for days before they actually start feeling ill. 3 weeks (or so) ago, the infected count was around 50 in China, now it's over 20,000 I believe. Makes you wonder what the number will be 3 weeks from now. The 14 day quarantine on people coming into the U.S. from that region is worth a shot for sure, but it also only takes one slipping through the cracks with an infectious disease to cause a big problem for any country. I read an article last week where one of the quarantined people at a California air base had attempted to leave the base without permission, after only being there a few days. Guess he thought he didn't have time or was too important for a medical quarantine that could infect/kill many other people. Luckily, he was stopped before getting off base and returned to quarantine. Several countries are just checking for fever in people arriving into their country from abroad, but as they have now proven that infected people are contagious before they develop any symptoms, I question whether this exercise is more for their public's peace of mind; than actually preventing the spread of a disease. Just this simple man's opinion, I'm sure they are many people out there that have a better understanding of it than I do.