Measles is spreading to more people and more parts of Utah since an initial outbreak on the Arizona border, with 115 people diagnosed statewide and recent cases confirmed in Davis, Salt Lake and Wasatch counties, the state's top public health officer said Thursday. "We haven't had that many measles cases in Utah for over 30 years," state epidemiologist Leisha Nolen told reporters Thursday. "So this is very extreme, and it's really concerning. But also of concern to us is the fact that we're now seeing measles in more parts of the state." Nolen noted the virus can hang in the air for two hours. She and Salt Lake County Health Department Executive Director Dorothy Adams said they're especially concerned about the danger it poses to babies too young to be vaccinated, who may be exposed to measles in waiting rooms in clinics and hospitals.