青达门乡中学设有小学5个年级共5个班，初中3个年级共3个班，全校师生共348人．有小学生146名．初中生181人，教职工21人。自1993年11月至1994年4月．初三班学生中发现结核病患者5例（其中肺结核病3例、结核性脑膜炎1例、结核性腹膜炎1例）．为了解该校师生结核患病情况及其病? Qingdaimen Township Middle School has 5 primary schools with a total of 5 classes, 3 junior high school a total of 3 classes, a total of 348 teachers and students. There are 146 primary school students. 181 junior high school students, 21 faculty members. From November 1993 to April 1994. The first three classes of students found 5 cases of tuberculosis patients (including 3 cases of pulmonary tuberculosis, tuberculous meningitis in 1 case, tuberculous peritonitis in 1 case). In order to understand the prevalence of tuberculosis and its disease in the school teachers and students?