150 years ago, the Ministers of the Infirmary (Camillians) started to develop in countries other than Italy, including Spain, France, Germany, and Peru in South America. After World War II, the Camillians, originated in Northern Italy, decided to step out to Yunnan, China in 1946. In 1952, Chinese Communist Party expelled all the foreign priests, brothers and sisters from the mainland China. Consequently, there are 6 priests and brothers, 4 sisters came to Yi-lan, while the other 4 turned to serve in Thailand.