Fatigue

"You are fatigued and take 10% more damage from all attacks. Eat Vitamins to cure this."

Description
is a negative Status Effect. When hit by a zombie or animal, occasionally the player will experience and will take 10% more damage from all enemies. Vultures and zombie animals have a high chance of inflicting fatigue, regardless of armor or game stage.

Max Health will be lowered by 20.0 until the player consumes Vitamins to negate the status effect. Vitamins immediately cure fatigue when taken.

This debuff is common early in-game but as the players character becomes stronger it will usually occur with stronger zombies like Feral and Radiated type and less so with the weaker variants.

The Healing Factor perk decreases the likelihood of a hit from any source causing this status effect, and decreases the time to recover without medication.