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前言百日咳为幼儿期内四种重要传染病之一,罹病率仅次于麻疹。一般家庭接触发病率为75—90%,据Camet 氏资料流行区内一岁以上小儿发病率在70—93%,生后六月内之乳儿对一般急性传染病不易感染,惟对本病生后即可感染,本组病例中年龄最幼一例为52天,盖由母体移行于胎儿之百日咳特原性抗体极易消失之故。百日咳本身虽为非严重致命之病,但因其常并发肺炎等严重合并症,故乳幼儿患者病死率极高,据 Davis 等之报告,在1948年以前一岁内百日咳患儿病死率高于麻疹、猩红热、白喉
Prelimination Whooping cough is one of the four major infectious diseases in early childhood, with morbidity second only to measles. The incidence of general family contacts is 75-90%, according to Camet’s data prevalence in children over one year incidence of 70-93%, within six months after birth, the baby is not susceptible to the general acute infectious diseases, but the disease After infection, the youngest case in this group a case of 52 days, cover by the mother migrate in the fetus of the pertussis specific antibody can easily disappear. Although pertussis itself is not a serious and fatal disease, but its often complicated by pneumonia and other serious complications, it is extremely high mortality in infants and young children, according to Davis et al. Report, before 1948 one year old children with pertussis mortality was higher than Measles, scarlet fever, diphtheria