Memoirs of the End Times

At first people just thought it was an ordinary flu, until the infected people turned into bloodthirsty walking zombies, and I unfortunately witnessed it all with my own eyes. Now that I am temporarily safe, those hellish scenes are still vivid in my mind. In my nightmares every night, I would relive my abandonment of humanity again and again in order to survive... If I could do it over again... If I had a chance to do it over again, I would never have set foot in the hospital that day.