Medical Mysteries
- Episode aired Jul 15, 2014
![Katie Couric and Si Robertson in Katie (2012)](https://m.media-amazon.com/images/M/MV5BMWIxMjU0MjAtYmU4ZS00ZGZkLWFjZGQtYTZhMDgyNmFlNjE3XkEyXkFqcGdeQXVyMjk1MDY0Nzk@._V1_QL75_UX190_CR0,2,190,281_.jpg)
Blogger Tavi Gevinson; Dolvett Quince ("The Biggest Loser"). Also: families dealing with mysterious illnesses.Blogger Tavi Gevinson; Dolvett Quince ("The Biggest Loser"). Also: families dealing with mysterious illnesses.Blogger Tavi Gevinson; Dolvett Quince ("The Biggest Loser"). Also: families dealing with mysterious illnesses.