translation.en: Now, it's interesting because there are 30-odd diseases that can be treated with vaccines now, but we're still threatened by things like HIV and flu.
translation.zh: 现在你会感觉着挺有趣。 因为新的30种奇特病毒 已经能被疫苗预防住了。 但是我们仍然受到艾滋病毒和流感的威胁。