 Mostly, cases of infection remain in impoverished parts in the southwestern provinces of Yunnan, Guizhou and Sichuan, and Tibet in the west and Hunan in the South.Other provinces/municipalities affected on a smaller scale, are Anhui, Qinghai, Chongqing, Guangdong and Shaanxi.Contrary to popular belief, leprosy ranks lowly in terms of infectiousness and is not congenital.