Taco Bell taking precautionary measures as cyclosporiasis outbreak spreads in Michigan

Michigan's outbreak of cyclosporiasis, a disease marked by severe diarrhea, intensified Tuesday, with 3,300 cases identified and 44 people hospitalized. On Tuesday, Taco Bell told CBS News that it has "voluntarily and temporarily removed limited ingredients at select restaurants as a precautionary measure." CBS News medical correspondent Dr. Celine Gounder reports on what might be causing the spread.