Parasitic illness spreads across multiple states

We're hearing reports from Michigan and at least two dozen other states of increasing cases of cyclosporiasis, a foodborne illness caused by a parasite that can contaminate fresh produce. The infection can cause severe, prolonged, and sometimes explosive diarrhea. LiveNOW's Anna Marsick speaks with Texas State University Dr. Rodney Rohde about the outbreak, what's driving the rise in cases, and what people can do to protect themselves.