So I don't know for sure if it was pure boredom or just me thinking a bit too deep into things, but the biology of Spitters to me is fascinating, and I want a reason for it to make sense in a fun way and I've come up with this for maybe a few hours.
In Dying Light: The Beasts infection information page, it told us that they used to be paramedics during the outbreak who mutated to projectile vomit the medicine they once used to help people, simple enough, but it bothered me to how vague the definition was, and how little sense it made, what kind of medicine could've changed their biology in such a way to turn them into infected mortars, and how theu would produce so much bile in order to throw it up as projectiles.
I went searching for a while, looking at Dying Light lore medicines like Asporfin and Antibiotics to look for anything, then I decided to take a look into antiviral medicines I reality that could potentially alter genetic material and cause mutations, what came up kinda spawned even more questions, but it started to make sense, the medicine in question is known as Nucleotide/Nucleoside Reverse Transcriptase *Inhibitors*, which are used to treat HIV, looking at it I reminded myself of everything Inhibitors in Dying Light 2 are, theyre a cocktail of Antizin and THV GenMod, both altered versions of the virus to act as suppressants for the infection itself, as well as the original Harran Virus having the ability to naturally mutated the classic Toads from the first game, which couldve transferred in some way, and people in Villedor always warn people of the dangers of using Inhibitors though we never truly see what they cause when used on the wrong person, and who would have access to these Inhibitors early on in the viral outbreak other than Paramedics if antibiotics and antiviral were passed out about as fast as candy on Halloween, and even them, is it possible that some paramedics got so desperate to delay their own infection they took a gamble with Inhibitors and mutated into the Spitters we see them as?
Im desperate to be proven wrong or even given more info to ask more questions, its one of my favorite things so please by all means educate me if I got anything wrong lore-wise or if something doesnt make correct sense