Madness poison. A successful attack from the centipede's bite renders the victim Confused.
Light sensitivity. In bright light, giant centipedes suffer -1d6 to all dice pools.
Rotting stench. The overpowering stench of a giant centipede - rotting carrion - can be smelled easy by anyone within 60'. A monstrous centipede's lair is so disgusting that any sentient creature who begins its turn in it is subject to a 3d6 vital attack at the start of their turn or become Sick.