What is the point of the Abrasion injury?

[Ramethzer0]

I'm not sure if you knew this but there are a multitude of other debuffs that can be inflicted upon you after scuffling with the undead as well.

 

Its been noted in the code by other users that certain zeds also have a higher chance of inflicting infection.   I have heard in the past, that a group of zeds mobbing up on you can have a collectively higher chance to wound any given player.  Not sure how that's been tweaked or evolved since A19.  So, it would seem there already exists a web of damage types that can be inflicted upon you should you find yourself unlucky enough to get boxed in.