上一世纪 ,在卫生、抗菌药物发展和免疫预防方面的进步已使大多数儿童的感染性疾病得到治愈。但由于医疗保障尚不普遍 ,感染性疾病仍然是儿童期发病及死亡的主要原因。儿童健康的差异与工业化国家和发展中国家社会经济状况的关系越来越密切 ,同时 ,还与这些国家中家庭收入的差 In the last century, progress in health, antimicrobial drug development and immunoprophylaxis has resulted in the cure of most children’s infectious diseases. However, due to the fact that medical insurance is not yet widespread, infectious diseases are still the main cause of childhood morbidity and mortality. The differences in children’s health are increasingly related to the socio-economic conditions of industrialized and developing countries, and at the same time they are also associated with poor household income in these countries