UNCOMMON BOND: Siblings share rare genetic disorder

For the Jennings family, the unknown is a real part of their lives. Vanessa, 11, and Jacob, 7, were diagnosed with a rare disease in 2008. At the time, Vanessa was 7 and Jacob just 2. Doctors had been testing Vanessa since she was about 2 years old in an effort to discover what was wrong.

By KENDRA PEEK

December 17, 2012