I go from calm and reading as much as I can on official papers and reports on it and then worried as soon as I either look at mainstream media or on forums discussing worst possible scenarios
At the moment it’s feb 15th, over 2 months (possibly more we will never know) since the original outbreak in Wuhan where people are in their masses and travel far and wide on a daily basis.
It has a 14-30 day incubation (tbc) and symptoms get worse after a week or go away.
So by now surly things in Europe and USA where there are tech and manufacturing hubs would be suffering big time by now.
We have 2 examples of it being transferred by travelling people on business infecting a group of people in Germany and England/France and so far there is no sign of further major outbreak.
I think that must have some sort of reassurance to it