There are many different types of diseases occurring to suffer the people all over the world from the past up to the present and will continue up to the future. Many people died from serious disease especially in the past due to the lack of understanding of the disease and medicine. Now let me show one of the curable diseases yet kill many people. This is called leprosy which is a curable disease yet killed many people about seventy years ago. People having that disease were not allowed to stay in the community. They need to stay away and when they died they are not allowed to bury in the ground as well. They could be left hanging from a tree in a graveyard or put inside the hole of tree and left to die, so that the earth would not be infected or poisoned by the disease.