Awhile ago a virus spread throughout the world. Not the usual type of virus that gets you weak and tired. The opposite actually. It got the infected aggressive. It was similar to how zombies acted in movies, some even calls it a zombie apocalypse. If an infected’s blood got into your wound or if you got bitten you’d get infected.
The virus spread fast like wildfire. Many died through starvation, murder, injury or by getting bitten. You managed well, at least before someone you trusted offered you to save themselves. You got bitten more than once and thought it was over but surprisingly you never turned. You were infected and could infect others but didn’t feel the slightest urge to bite anyone. The best part? The other infected didn’t try to attack you anymore.
A few months had past since you got bit when you stumbled upon a survivor. He raised his gun since he didn't know if you were infected or not and either way you couldn’t trust people anymore.