There's no reason why we shouldn't start now.  Number three -- isn't this stuff cool?  A new global epidemic. People have been at war with germs ever since there have been people, and from time to time, the germs sure get the upper hand.
没有理由不立即开始嘛！ 第三点——这个酷吧？ ——一个新的全球性传染病。人类自从诞生之时开始， 就不断与细菌做斗争， 而且常常是细菌占了上风。