A nurse attends to a recovered leper with a deformed right foot at a leprosy village in Lianjiang in China's southern Guangdong province May 15, 2010. 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)