Probably stay away from China, South Korea, Iran and Italy for the time being.
Choosing to travel with coronavirus is a personal decision: There's no wrong answer, as long as you're traveling responsibly and taking precautions to prevent spreading it to other folks. (Get the travel insurance, folks.)
There's no denying there has been ramifications: For the full list of travel restrictions and route changes to affected areas, see this list. On top of that, many airlines are waiving change and cancellation fees in order to spur new bookings.
Let us know how coronavirus is affecting your plans.