Besides the continual appearance of previously unseen infectious diseases such as SARS that catch people off guard, others that have been with humanity since ancient times still torment us. They wait for an opportunity, and just when people seem to have forgotten these old foes 'existence, they strike again.
除了像 SARS 這種前所未見的新興傳染病不斷出現，令人措手不及外，古老的傳染病也仍舊持續困擾著人類，它們伺機而動，在人類幾乎忘了它的存在時又捲土重來，結核病就是其中之一。