Before Chen Rou could state her position, Nie Yao had already started talking.
"Three hundred years ago," he said, "early biologists discovered a tiny organism in the human mouth that could cause illness. Over two hundred years ago, Pasteur invented pasteurization, and humanity began its war against bacteria."
Liang Lisheng had no idea why he was suddenly bringing this up and was about to stop him when Chen Rou waved a hand. "Let him keep talking."
Chapter 165