Leprosy is a horrible and chronic contagious disease that involves the rotting of flesh.
There are many terrible diseases in the world, but one of the very worst is leprosy. This bacterial disease is caused by the bacillus Mycobacterium leprae. Leprosy occurs in tropical and subtropical areas, and it's a chronic disease, meaning it doesn't go away. The flesh and organs of a person with leprosy waste away, kind of like a dead person’s. Leprosy also involves inflamed white sores forming underneath the skin. Someone with leprosy is called a leper.