Chapter 628 Gene Weapon

By the time Qin Han received the feedback results, his brows furrowed deeply; the problem was not with the water source.

It was the cooking oil used in household products that was to blame, and the cause of the incident was quickly identified.

All the patients' families had purchased a certain brand of cooking oil, which was produced by a foreign enterprise that also owned a biopharmaceutical company!

The pathogen causing the widespread infection of diarrhea in Zhongzhou City originated from the laboratory of this biopharmaceutical company.

What Qin Han couldn't understand was how the virus entered the cooking oil production workshop, given that one was located in the east of the city and the other in the west.

The strangest part was that none of the company's key personnel or their families were infected throughout the incident.