呼和浩特市在1990年5～7月间发生一起罕见的白喉暴发,经采取以精制白喉类毒素应急接种为主的综合性防制措施,疫情很快控制。现将流行病学调查结果及其控制,报告如下.一、调查方法及病例诊断1.流行病学调查:对疑似病人进行流行病学个案调查,填写“白喉流行病学个案调查表”. 2.病原学:采集患者咽拭子,培养、分离白喉杆菌。作生化鉴定、毒力试验。3.诊断标准:临床表现结合病原学或流行病学。二、调查结果(一)流行经过:首例病人李××,男,21岁,呼市橡胶厂工人。1990年5月18日发病,5月27日诊断为白喉,转传染病院治疗。5月30日至6月3日,对首例病人所在工厂进 In Hohhot, a rare outbreak of diphtheria occurred between May and July 1990. The comprehensive prevention and control measures based on the emergency vaccination of refined diphtheria toxoid were taken and the outbreak was quickly controlled. The results of epidemiological survey and its control are reported as follows: I. Methods of investigation and case diagnosis 1. Epidemiological investigation: To carry out an epidemiological case investigation of suspected patients and fill in the “Diphtheria Epidemiology Case Survey.” 2 Etiology: Throat swabs were collected, cultured and isolated from diphtheria bacilli. For biochemical identification, virulence test. 3. Diagnostic criteria: Clinical manifestations combined with etiology or epidemiology. Second, the findings (a) popular after: the first patient Li × ×, male, 21 years old, Hohhot rubber factory workers. May 18, 1990 onset, May 27 diagnosis of diphtheria, transfer infection hospital treatment. May 30 to June 3, the first patient where the factory into