Recovered leper Lui Sang, 81, rests at a leprosy village in Liangjiang in China's southern Guangdong province May 15, 2010. Lui fell ill with leprosy when he was a child, like his older brother, and was sent to this village in 1958. Geneticists recently found variants of seven genes which may increase a person's susceptibility to leprosy - calling into question an old belief that it is an infectious disease that is transmitted via droplets from the nose and mouth of an infected person. Picture taken May 15, 2010. REUTERS/Staff (CHINA - Tags: HEALTH)