广泛开展日喉类毒素预防接种,可以控制白喉的发生和流行。然而在预防接种工作抓的不扎实地区,由于人群免疫水平下降,可发生白喉流行。本文就固原地区1963～1980年的18年间白喉流行情况报告于下:流行病学特点一、历年来发病:1963～1980年间,除1968年及1979年未发生病例外,以1965年发病率最高,达18.67/0万;其次是1966年(8,55/10万),见表1。 Extensive laryngeal toxoid vaccination can control the occurrence and prevalence of diphtheria. However, in the non-solid areas where immunization work is tackled, the prevalence of diphtheria can occur due to the decline of population immunity. This article on the Guyuan area 1963 ~ 1980 18 years, the prevalence of diphtheria reported in the following: epidemiological characteristics of a, the incidence over the years: 1963 ~ 1980, except in 1968 and 1979 did not occur, the highest incidence in 1965 , Up 18.67 / 0 million; followed by 1966 (8,55 / 100,000), see Table 1.