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百日咳是常见的小儿急性传染病之一。共传染性较强,且人体自出生即对百日咳有感受性,只要与病源有接触,新生儿亦可得病。幼儿及学龄前期儿童发病率最高,根据文献报告可占85%。最近上海马永兴氏等报告称:七岁以下患者占97%,一岁以下占28.7%。在流行区内一岁以上的托儿所儿童,其发病率达70%。接触较密切的个别托儿所,其发病率可达93.1%。由此可见,此病的发生主要在幼儿及学龄前期儿童,且其传染性很强。
Pertussis is one of the most common childhood acute infectious diseases. Commonly contagious, and the human body from birth who have feelings of pertussis, as long as contact with the source, the newborn can also get sick. The highest incidence of children and pre-school children, according to the literature can account for 85%. Recently, Shanghai Ma Yongxing et al. Reported that 97% of patients under the age of seven and 28.7% of those under one year of age. The prevalence of children over one year old nursery school, the incidence rate of 70%. The close contact with individual nurseries, the incidence rate up to 93.1%. Thus, the incidence of this disease mainly in children and preschool children, and its highly contagious.