SALT LAKE CITY (AP) — As coronavirus deaths increase, Utah officials started using an emergency alert system to send text messages to drivers entering the state, asking them to report any virus symptoms and a recent travel history. The state declared truck drivers exempt from the system. Hundreds of thousands of truckers enter the state each day carrying essential supplies for grocery stores and medical facilities. Paul Enos, CEO of the Nevada Trucking Association, said the system could interrupt interstate trips and be invasive to drivers who sometimes travel through multiple states a day. The program went into effect as the number of coronavirus deaths in Utah rose by four, to 17.