“I know my wife would be less worried,” Acosta, 27, says with a smile. A practical nurse specialist with a four-month-old baby at home, Acosta is part of the team of hundreds of U.S. soldiers setting up a field hospital in Seattle that will treat non-coronavirus patients, relieving pressure on civilian hospitals. Instead of being pitched in a war zone, this field hospital is rising inside a cavernous events center adjacent to CenturyLink Field, the staduim where Seattle’s football team normally plays and which once had been scheduled to host a “Dancing with the Stars” performance this week.