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(2016年9月世界卫生组织公布)从1974年全球实施扩大免疫计划(EPI)以来,预防6种疾病(结核病、脊髓灰质炎、白喉、破伤风、百日咳和麻疹)的疫苗接种已经减少了上百万人死亡和伤残。疫苗的研发和使用取得了显著的进展,目前全球有25种疾病可以用疫苗预防。以前高收入国家使用疫苗数十年后,中低收入国家才能引进
(Announced by the World Health Organization in September 2016) Vaccination against six diseases (tuberculosis, poliomyelitis, diphtheria, tetanus, pertussis and measles) has been reduced since the global expansion of the immunization program (EPI) in 1974 One million deaths and disabilities. Significant progress has been made in the development and use of vaccines. Currently there are 25 diseases that can be prevented by vaccines. Lack of access to low- and middle-income countries before decades of vaccination in high-income countries