We will know in the next week or so if it moves to a phase 5, which is defined as "Spread throughout United States". Phase 4 is "First Human Case in North America".
Given the Social Distancing plans the government has, my concern is what Obama and Rahm "never waste a crisis" Emmanuel will do if we do go to a 5.
The government has very detailed plans already written and tested for this. They thought it was going to be bird flu, but this will work the same. Think Martial law and roadblocks manned by troops in MOPP4. the laws are already on the books and I am sure they are being dusted off right now. We are just waiting for the declaration of a national emergency by Obama, that will set this in motion. To give Obama some credit, he may not have a choice, this could be the big one and he has to take some big steps to save the nation. That being said, I think he will screw it up.