An epidemiologist is the person whose job is to study how diseases move through groups of people, and how to slow or stop them. They are not, in the usual picture, the hospital doctor treating your sore throat. They look at many people at once: who got ill, where, when, after what food or trip, and which groups are in more danger. From that pattern they try to find the cause and the rules that actually help — staying home, cleaner water, a vaccine.

An epidemiologistepidemiologist is the person whose job is to study how diseases move through groups of people, and how to slow or stop them的工作就是研究疾病如何在人群中傳播、以及要怎麼減緩或阻止它。in the usual picture一般印象裡，They are not他們不是 the hospital doctor treating your sore throat幫你看喉嚨痛的醫院醫生。They look at many people at once他們會同時看很多人：who got ill, where, when誰生病了、在哪裡、什麼時候，after what food or trip吃了什麼或去哪裡旅行之後，and which groups are in more danger還有哪些族群風險比較高。From that pattern從那個模式裡，they try to find the cause and the rules that actually help他們試著找出原因、還有真正有效的做法——staying home, cleaner water, a vaccine待在家裡、乾淨的水、疫苗

The study itself is called epidemiology; this word is the worker. You will hear it in news and public-health talk, not much at the dinner table.

The study itself is called epidemiology這門學問本身叫做epidemiology；this word is the worker這個字則是指做這件事的人。in news and public-health talk在新聞和公衛相關的討論裡 You will hear it你會聽到這個字，not much at the dinner table飯桌上比較少講

Though actually, TV often uses “epidemiologist” for anyone in a white coat who explains an outbreak. Some epidemiologists are doctors, but many come from statistics, biology, or public health — they are pattern-finders first.

Though actually不過其實，TV often uses "epidemiologist"電視上常常把「epidemiologist」 for anyone in a white coat who explains an outbreak用來稱呼任何穿白袍、出來解釋疫情的人。Some epidemiologists are doctors有些epidemiologist是醫生，but many come from statistics, biology, or public health但很多是統計、生物或公衛背景出身——they are pattern-finders first他們首先是找出規律的人