C1116 Etiological origin

The root of the Old Master Bao's illness had been removed, but why did he get "infected"? The safety measures for the Baojia were rather high-end and perfect. There was also someone responsible for the inspection of the Old Master Bao's food. There was almost no chance of doing anything to the old man if he wanted to harm him.

But even in such a situation, the Old Master Bao was actually 'hit'