Glava-Sluz

Glava-Sluz (which means Head-Slime in Serbian) is the name given to a J'avo (a person who has been infected with the C-Virus through the bloodstream) which has mutated due to extreme damage to the head. The mutation occurs rapidly where their ribcage splits open and a enormous new Snake-like head with many sharp teeth sprouts from their chest cavity, along with another growth which appears to be some sort of sac which contains a seemingly unlimited amount of sticky slime.

They have the ability to spit the viscous slime from their mouth, similar to Spider webbing which has enough tensile strength to briefly incapacitate anything it comes into contact with. Then, they will approach their victim and mercilessly attack. If a person manages to break free from the slime, they will stop advancing to attack and begin again the process of spitting the slime.

They have a weak point which is on the back of their head. Since they can only attack head on, it's clear that their mutation has been purely concentrated on the front side of their body.