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根据世界卫生组织预计,由于得不到及时的疫苗供应,全球每年有100多万名儿童死于疫苗可预防的疾病。其中一个重要原因在于很多地区缺乏电力及相关配套设施,无法保证疫苗的储存温度。
According to the World Health Organization, more than one million children die each year worldwide from vaccine-preventable diseases due to the lack of a timely vaccine supply. One of the important reasons is the lack of electricity and related facilities in many areas and the inability to guarantee the storage temperature of vaccines.