Morel mushrooms Public health officials have signed off on an outbreak investigation in Montana saying that morel mushrooms were most likely what made dozens of people sick and killed two. In addition to the two deaths, the outbreak traced to Dave’s Sushi in Bozeman, MT, sickened more than 50 people and sent three to hospitals. People became ill between March 28 and April 17 this year, according to the Gallatin City-County Health Department. The local department worked with the Montana Department of Public Health and Human Services and the U.S. Food and Drug Administration, as well as the U.S. Centers...