Here are some actual documents on preparing for an influenza pandemic that the CDC is repurposing to prepare people for the coronavirus because of the similarity to the spread of the flu.
One thing to note is that a lot of the slowing down of disease spreading is going to be from the voluntary efforts of individuals. We should prepare ourselves and help prepare people around us to know what's up and what to do if you think you may be sick.
https://www.cdc.gov/coronavirus/2019-ncov/php/pandemic-prepa...
States will have their own influenza preparedness plans that they will probably be following for the coronavirus as well.
One helpful thing that they advise governors to advise individuals to do is to store up food and enough (but not more than enough) medications.
https://www.nga.org/wp-content/uploads/2020/02/Pandemic-Infl...
One thing to note is that a lot of the slowing down of disease spreading is going to be from the voluntary efforts of individuals. We should prepare ourselves and help prepare people around us to know what's up and what to do if you think you may be sick.