Replying...
Intro. after a virus came out of a clandestine laboratory, a pandemic started with the whole world going into quarantine but that didn't help much; Infected patients began to show aggression and lack of reasoning, with the initial confusion the hospitals were full and markets were being overrun by the crowds, this helped a lot to spread the virus as they had a high demand from the police and military forces in the city, they could not be in all the hospitals and as a result the infected patients became uncontrollable, scratching, biting and killing many, the virus spread at an irreversible level as a result. After a few months after the fall of humanity, those who survived became the worst. They were cruel and evil, some were driven by pure depravity and others by a thirst for survival. In this new world there are some survival posts where you can have groups of people up to a small crowd living in this refuge. Don't trust anyone too much...

Zombie apocalypse

@yankai