Last Tuesday(?) the CDC widened it to patients with severe respiratory distress with no obvious cause - travel was not included. That is why they tested the man in Washington on Thursday, and who has since died. The man had other chronic health issues that complicated treatment.
So it isn't a case of more people have the virus, just more people are being tested for it. I imagine that in the next week there will be a huge spike in the numbers. Washington state just became able to test in-house, rather than sending it to the CDC, so that will also factor into more people getting tested.
Thanks for the mention. That makes sense.