Yes, I see the need to be cautious, but this thing appears to be being blown out of proportion. If you have read about the 1918 flu epidemic, you will find that millions of people died. Since it was in wartime, many governments, including the US, were very secretive about the spread and even the existence and prevalence of the disease. As a result a lot of death certificates that should have said influenza said things like pneumonia, instead.
Now we are talking about something that has affected about 100 people in the US and killed nobody here - yet.
I was in Taiwan during the SARS epidemic. They did not shut down public transportation. The cities would have congealed if they had, but you had to wear a face mask to ride a bus, subway, train, or airplane. Many events that would have resulted in gathering of large numbers of people were canceled. Your temperature was taken before you could enter most public buildings, and even the one man and his family barber shop where I got my hair cut checked my temperature when I came in. Yet for the entire duration of the epidemic, there were only about 50 deaths on Taiwan out of a population of about 21 million. I don't recall the total number of cases, but the number was not truly huge. Aggressive treatment kept the fatalities low.
We got some glimmers of what was happening in China, where the situation was quite different due to the much lower level of hygiene and quality of medical facilities available to the general public. The reality there will probably never be know due to the level of secrecy surrounding what really happened.