How is Ebola spread? Two ways; one, by letting anyone exposed to it in West Africa into America when they fly here and, two, by assuming that medical professionals and others who have been exposed to it would quarantine themselves from contact with others once they are here.
The latest case is Dr. Craig Spencer, an American to whom the travel ban would not apply, identified as potentially having Ebola after treating victims in Africa and who totally ignored the potential of spreading it to others as he made his way around New York on subways, went bowling, and likely had dinner at a restaurant.
Earlier a NBC news crew that had been exposed to Ebola was issued a mandatory quarantine by the New Jersey Health Department, but its chief medical editor and correspondent, Dr. Nancy Snyderman, while symptom-free, decided to break the quarantine. One of the crew, Ashoko Mokpo, did fall ill and is being treated at the Nebraska Medical Center.
What does it tell you when two medical professional behave in this manner? It tells you that even those who know they can infect others were indifferent to the risk. It tells you that airport staff armed with thermometers are no defense against anyone coming in from the Ebola hot zone in Africa.