The state health department believes the risk for coronavirus is low in Colorado. That's despite investigating three possible cases in the state. So far, two of those have tested negative while the third is in the hands of the Centers for Disease Control. Health officials are still reminding people to have a heightened sense of awareness and caution. The respiratory illness started in China and has infected thousands of people, including a handful of confirmed cases in the U.S. More suspected cases are being tested.