Chapter 409 Industrial Foundation

The practices of the Sanitation Workers and Graycloaks have not just been a case of failing to help those in need; they watched humanity fall into destruction but still refused to offer the vaccine they had mastered to save mankind.

Before the Serpent People released the virus on a large scale, they had conducted experiments, which gave humans a small window to react. The Sanitation Workers, or perhaps the Graycloaks, must have obtained the virus samples immediately and quickly developed a vaccine using the Ark of the Covenant.

Because if the Sanitation Workers only had the vaccine after the Serpent People released the virus globally, they wouldn't have had time to vaccinate their own people.

Gao Yuan's perception of these captives immediately plummeted to an extreme low.

For a moment, the atmosphere became extremely solemn, because a vaccine that was 100 percent effective against the zombie virus meant too much for humanity.

Firstly, mankind could gain time.