Something I saw posted on another (non-stock market related) forum:
Confirmed cases in Mainland China:
Jan 18: 121
Jan 19: 198
Jan 20: 291
Jan 21: 440
Jan 22: 571
Jan 23: 830
Jan 24: 1287
Jan 25: 1975
Jan 26: 2744
Now that's a doubling time of approximately 2 days. If that continues then it'll reach 10,000 by Thursday this week and it'll exceed 100,000 during next week.
It's not my intent to be alarmist but I think we'll see the general community's level of concern about this rise substantially in the near future.
If the figures stop being officially reported then that would be the "red flag" that it's getting out of hand.
Confirmed cases =/= people infected as of that date.
There could've been 3000 people infected Jan 18, and 4000 Jan 26.
I would also like to remind people that the Flu (also a virus!!) is responsible for 650,000 deaths a year.