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And though most scientists hail vaccines as one of public health’s greatest achievements, they have provoked fear, distrust, and contentious resistance since Edward Jenner invented the first vaccine, to prevent smallpox, in the late 1700s.
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怎样创造政绩？关键靠实干，这是最质朴的方法论，是成就事业的必由之路。
評論者也警告，若民主黨重新掌權，他們可能利用因「2025計劃」而被擴大的行政權力，推動完全不同的議程。