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北京市第九十二中学在校人数约1,200人,自1980年10月至1981年10月一年陆续发现肺结核病人10人。为此于1981年11月～1982年1月对该校进行了流行病学调查。本次调查时又发现肺结核病人5人。一年来该校先后发现的肺结核病人均为同年级学生,多呈急性起病,病情较重,发展迅速。14例病人与首发传染源有关,其中所有排菌者均系原发耐药病例。接触者结素强阳性率和发病率较非接触者显著增高。该校结核病的传播呈链锁发生。现将结果报告如下:
There are about 1,200 students in No. 92 Middle School in Beijing. Ten patients have been reported to have tuberculosis from October 1980 to October 1981. To this end in November 1981 ~ January 1982 conducted an epidemiological survey of the school. The survey also found that five people with tuberculosis. Over the past year, the university has discovered that tuberculosis patients were all students of the same grade, with mostly acute onset, severe illness and rapid development. Fourteen patients were related to the first source of infection, of which all of the bacteria were primary drug resistant cases. The positive rate and incidence of contact knot were significantly higher than non-contact. The school’s spread of tuberculosis occurred chain lock. The results reported below: