Hansen's disease
Prevention consists of avoiding close physical contact with untreated people. People on long-term medication become noninfectious (they do not transmit the organism that causes the disease).
Ernst JD. Leprosy (Hansen's disease). In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier. 2007: chap 347.
Kumar B, Dogra S. Leprosy. In: Rakel RE, Bope ET, eds. Conn's Current Therapy 2008. 60th ed. Philadelphia, Pa: Saunders Elsevier; 2008: chap 25.