Personally, I think most of us will get it. The sooner you get it, the faster you can go with your life. That is why it is important to strengthen your immune system so you would fight the virus off. Zinc, vit C, iodide,etc.
Imagine in a big city "free" of the virus like Wuhan seems to be, you only need one infected outsider to restart the whole quarantine shit. Yes, lock up old people, but let the general population get it and fight it off naturally.
Until the vaccine arrives this will be a never ending loop of blocked and freed cities/communities.