Health officials in Wisconsin suspect three patients sickened by the same strain of E. coli O157:H7 contracted their illnesses after consuming raw milk, Wisconsin Department of Agriculture spokeswoman Raechelle Cline told Food Safety News Thursday. All three patients reside in Manitowoc County, and they include a three year-old child and his or her mother. Officials are currently testing samples of milk from the suspected dairy and will not identify it unless they prove a connection. “Raw milk was the most likely commonality we’ve been able to identify,” Cline said. The illnesses occurred in March, and the officials are unaware of any additional cases. Health institutions such as the U.S. Centers for Disease Control and Prevention advise against drinking raw milk, as it has not been pasteurized to eliminate potentially harmful pathogens.