BOISE, Idaho - Amid the Idaho coronavirus surge that prompted officials to authorize hospitals to ration health care, Army soldiers sent to one hospital have traded their fatigues for personal protective equipment to help treat a flood of infected patients.The conference center at Kootenai Health hospital in the city Coeur d’Alene has been converted into a field hospital of sorts — with some of its classrooms filled with hospital beds where patients receive oxygen or get monoclonal antibody treatment, hospital officials said.At the nearby main hospital building in the city of about 50,000, some emergency room patients receive care in a converted lobby and others get it in hallways.