translation.en: Because if there's anything worse in the field of global public health -- I don't know what's worse than allowing children on this planet to die of vaccine-preventable diseases -- diseases for which the vaccine costs a dollar.
translation.zh: 因为如果在全球公共健康的范畴， 有任何东西错了， 我不知道这世上还有什么比让孩子们 死于原本疫苗可预防的疾病更糟糕的事， 那些疾病的疫苗只价值一美元。