In current update, players will get two curses 'Fatigue' and 'Madness'. Fatigue decrease max stamina while, Madness increase minimum fear. Both stack after having sex with ghost that afflict them. They have max cap of 50% and 60% respectively. They gradually fade away at very slow speed but it can be expedite with methods mentioned in game. Other way to quickly, alleviate them is by purchasing potions from Dr. Blight.
For now, she is just a reference to SCP-049.