a person who studies or is an expert in the branch of medicine which deals with the incidence, distribution, and possible control of diseases.
noun [专属名词]流行病学家
"Most experts agree that the changes were related to something in the environment," says social epidemiologist Thomas Glass of The Johns Hopkins Bloomberg School of Public Health. 约翰霍普金斯大学布隆伯格公共卫生学院的社会流行病学家托马斯·格拉斯说:“大多数专家都认为这些变化与环境有关。”