MILBRIDGE, Maine (AP) — Maine officials are investigating a group of positive coronavirus case among blueberry workers.Four employees of Wyman’s who were working at a location in Milbridge have tested positive. The Portland Press Herald reports it was the third cluster of coronavirus cases at a blueberry processing facility or farm in the state. Maine Center for Disease Control and Prevention director Nirav Shah says the workers were tested before they began work. The cases have come at a time when the state is struggling to fill agricultural jobs. Maine public health authorities also reported 17 new cases of the virus on Wednesday. The state has had more than 3,900 reported cases of the virus and 124 deaths.