鼻咽癌与EB病毒感染有密切关系,而EB病毒外壳抗原的免疫球蛋白A抗体(VCA-IgA)对鼻咽癌又是特异的。本室于1983年4～11月开展了以中年人为主体的体格检查,同时进行了VCA-IgA检测。 一、对象 本组分两批进行外周血VCA-IgA测定共3,996人。前一批为逐人测定,共24个厂,2,131人(男1,830人,女301人);后一批经 Nasopharyngeal carcinoma is closely related to Epstein-Barr virus infection, while the immunoglobulin A antibody (VCA-IgA) of Epstein-Barr virus coat antigen is specific to nasopharyngeal carcinoma. In this room, a middle-aged person-centered physical examination was conducted from April to November 1983, and a VCA-IgA test was performed at the same time. I. Subjects This group of 2 groups of peripheral blood VCA-IgA total 3,996 people. The previous batch was measured on a person-by-person basis. There were 24 factories and 2,131 people (1,830 males and 301 females);