1. Leprology is the branch of medicine that deals with the study and treatment of leprosy.
麻风学是医学的一个分支，研究和治疗麻风病。

2. She dedicated her life to leprology and worked tirelessly to improve the lives of leprosy patients.
她把自己的一生奉献给了麻风病学，并不知疲倦地工作，为麻风病患者改善生活条件。