Day Two of World Pork Expo in Des Moines, Iowa. This morning's show is made possible by Merck Animal Health (drivenbyprevention.com). We have a conversation with Dr. Lisa Becton, director of swine health at the National Pork Board.

<p>Day Two of World Pork Expo in Des Moines, Iowa. This morning's show is made possible by Merck Animal Health (drivenbyprevention.com). We have a conversation with Dr. Lisa Becton, director of swine health at the National Pork Board.</p>

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