百日咳是小儿常见的几种主要传染病之一。小儿感染此病后,无论在近期或远期,都可能对小儿的身体产生很大的危害,因此我们应该积极地预防百日咳的发病。但是由于百日咳的菌苗自动免疫效果不稳定,百日咳的传染源在管理上有很大困难。(如发病初期的患者,传染性非常强,但此时却颇 Pertussis is one of several major infectious diseases common in children. Children infected with the disease, whether in the near future or long-term, may have a great harm to the body of children, so we should actively prevent the onset of whooping cough. However, due to the autoimmune effect of pertussis vaccine instability, the source of infection of whooping cough in the management of great difficulties. (Such as the early onset of patients, very contagious, but quite at this time