After a brief greeting, Cheng Ye's gaze fell on the refrigerated truck and he asked again, "What are you doing?"
"It's like this, lately the checkpoint has been receiving more and more refugees, and the infection sources have unknowingly piled up. But our checkpoint hasn't finished building enough containment rooms yet, so we can only periodically send these infection sources to the research institute for preservation. If left unattended, they'll quickly become inactive, and by then, they'll have completely lost their research value."
While explaining, Qin Feng reached into his pocket to fetch a pass, handing it to the guard at the doorway, asking the guard to check the items in the warehouse.
"Are there so many infection sources recently?" Cheng Ye pursued.
