Oregon-grown hazelnuts are suspected in a series of food poisonings in the upper Midwest. Even people in Minnesota, Wisconsin, and Michigan developed E-coli after eating hazelnuts, prompting a California distributor to issue a voluntary recall. Industry leader Polly Owen says investigators haven't determined if hazelnuts are the problem. Two people in Canada came down with the same strain of E-coli, but they hadn't consumed hazelnuts. Almost all hazelnuts in the U.S. come from Oregon.