Will Cornejo is recovering from respitory virus that has hit Colorado.The rare respiratory illness that cropped up in multiple states recently has been confirmed in four new states, public health officials said Wednesday. Cases have been confirmed in Connecticut, Montana, Nebraska and Virginia, according to the Centers for Disease Control and Prevention, which means that 16 states now have confirmed cases of the virus. The others are: Alabama, Colorado, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Missouri, Oklahoma, Pennsylvania and New York. The rare virus strain, enterovirus 68, can cause severe breathing problems. There have been 140 cases confirmed by laboratory tests, the CDC said, but it is believed that many more people have the virus and that it will continue to appear in additional states in the near future. More