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1977年8月19日,从一例因伪膜性扁桃体炎和喉阻塞症候而入院的10周龄婴儿的咽喉伪膜中,分离出了一株有毒力的轻型白喉杆菌。当时给患儿白喉抗毒素和红霉素,并转至地方传染病科,后来患儿恢复了。搜索病例和带菌者患儿有一8岁姐姐在当地小学上学,无白喉症状,但从其鼻和咽喉中分离出了一株有毒力的轻型株。于8月末对该校的接触者开始了检查,并扩大到本地区的其它小学。在其后的
On August 19, 1977, a virulent strain of C. diphtheriae was isolated from the pharyngeal pseudo pharynx of a 10-week-old infant hospitalized for pseudomembranous tonsillitis and laryngeal obstruction. At that time, children were given diphtheria antitoxin and erythromycin, and transferred to the local infectious disease department, and later the children recovered. An 8-year-old sister from a search-case and carrier child attending a local primary school without diphtheria symptoms isolated a virulent light strain from her nose and throat. At the end of August, the school’s contacts were examined and expanded to other primary schools in the area. After that