What happened: I experienced an bug where I walked around the building and suddenly get damaged with several cuts, a broken leg and a huge health drop, additionally got unconscious. I did not find a trap, nor a other play, nor an infected. In fact there was no infected in a radius of 50m.

Where: Novaya Petrovka, medical center, last room to the right
Berencino, northern Police department, first room to the right