HIV is sometimes referred to as a disease of the gut because of the voracity with which it attacks a victim’s gastrointestinal tract. As researchers look at ways to limit the disease’s affect on the body, a simple, stomach soothing solution came to mind: yogurt. More precisely, yogurt infused with friendly bacteria. Scientist Gregor Reid joins The Takeaway to talk about his work with HIV patients in Africa. There, in Tanzania, he has helped teach a group of “yogurt mamas” how they might serve up disease protection one cup at a time.