Children Fighting Cancer - Series 1 - Episode 3

Series which follows nine children in their quest for a cure for leukaemia. The show focuses on Zakk, a lad of action reduced by months of chemotherapy to driving a mobility cart, and three-year-old Olivia, an identical twin. Olivia is of special interest to scientists, who believe that modern bug-free homes may harm the early development of the immune system, and twins carry clues that could bring prevention closer.