Americans need to be cautious about the coronavirus. It is not just China and the Philippines that has been effected. The idea that all possible carriers are quarantined in the USA is a “Duck and Cover” illusion. There has been a case in New York City. My best guess is a traveler from China that did not want to be quarantined came through Europe.

Any international city should be on alert. By international I mean a city with significant transportation that is usually one of the first places foreign arrivals experience Americans. NY, LA, Chicago, Miami, etc.

The symptoms are somewhat vague in the first nine days. The first signs are cold - flu like - sore throat. Within the first five days the impact is mild. By the 5th day a person will feel quite ill and more like a stomach virus. The ninth day is when the pneumonia shows up. 

If anyone is feeling ill no matter the symptoms take it very seriously and see a doctor or go to a health clinic. This is survivable but it needs medical treatment.