how will the coronavirus impact the U.S. if it spreads across all states?

Hello and Good Afternoon Everyone,

          With the media attention that the coronavirus has been given lately, it does pose an important question.  What impact upon the U.S. will it have if it causes factories to shut down?  I am sure it is already having a negative impact on the economy, especially with respect to air and sea travel across countries.  But, I am wondering what the worst-case scenario would be given what we know about the coronavirus.

           Thanks

           George