In a normal medical setting, Cheng Shuang's case might be considered a special case by experts, or even observed by a group of future doctors from the medical school, then registered and sent home.

But this is a research institute, a place for studying viruses.

How could they possibly give up such great material?

After learning that she would be isolated and placed under house arrest and subjected to a series of unethical experiments, Cheng Shuang released the Zombie Monster to save herself. Before slipping away, she took a few extra vials of vaccine as compensation for herself.

She had a chance to escape when she was arrested, if she had wanted to.

The little girl admitted that she deliberately took the risk for the sake of the vaccine. Her immunity to the virus was entirely due to her repair skills, which allowed her to quickly clear and repair the virus as soon as it entered her body.

But Du Lanshan was different; he didn't have that skill.

Furthermore, since the Gate of Reincarnation can devour the game system wanderers in the 'New World of Rebirth,' does that mean the in-game store can also trade vaccines?

She would never take the virus from the rest stops where the maintainers reside, but the antidote and vaccine are essential. Who knows if people from other rest stops have also come to the Biohazard outbreak and secretly brought back something as dangerous as the virus as a weapon?

She likes to take precautions.

The research institute was much more rigorous than Cheng Shuang had imagined, with countless alarms and surveillance cameras. She recalled the ending of the movie, with its empty research institute and streets full of mess and blood. In the end, the girl calmed down and did not rush to leave.

She carefully evaded the layers of search personnel, hiding herself in the ventilation duct of a secluded bathroom in the entire research institute, secretly searching for an opportunity and waiting patiently.

Perhaps when the opportunity arrives, the world will be like a hell...