摘要: Primary prevention concentrates on the cause prevention or reduction of risk factors,so as to prevent[阅读全文:]
摘要: Experimental epidemiology is to identify a group of subjects with the same conditions,and randomizes[阅读全文:]
摘要: Outcome is the disease or other changes in health status.It is the possible result that may be associ[阅读全文:]
摘要: Exposure is a very common used term in epidemiology,it refers to the causal factors that may be assoc[阅读全文:]
摘要: 丝虫病（filariasis）是由线形动物门的丝虫总科（superfamily Filarioidea）通常称为丝虫（ filaria）的一类线虫寄生于人体所引起。丝虫是由其中间宿主———吸血节肢动物传[阅读全文:]
摘要: 包虫病（hydatidosis, hydatid disease），又称棘球蚴病，是细粒棘球绦虫的幼虫感染人体所致的疾病。该病为人畜共患病。狗为终宿主，羊、牛是中间宿主；人因误食虫卵成为中间宿主而患包虫[阅读全文:]
摘要: 地方性斑疹伤寒（endemic typhus）也称鼠型斑疹伤寒（murine typhus），或者称为蚤传斑疹伤寒（flea-borne typhus），是由莫氏立克次体（Rickettsia moos[阅读全文:]
摘要: 流行性斑疹伤寒（epidemic typhus）又称虱传斑疹伤寒(louse-borne typhus)，是普氏立克次体（Rickettsia prowazekii）通过人虱为媒介引起的急性传染病。其临[阅读全文:]
