When Aleks Krotoski was six years old she lived in a world surrounded by people with leprosy, or Hansen's Disease as it's officially known. Both her dad and step mum worked at the US's last leper home, the National Hansen's Disease Centre in Carville Louisiana, tucked away in a bend of the mighty Mississippi. Today she makes a return journey to find out if the stigma of leprosy still exists and how the disease is being treated.