#(And what they DO tell others generally is blocked by language barriers or seems unrealistic)

[a-beneficial-union]

I've written myself into a bot of a corner here. As it stands, Vulp-ens have two sets of most vital organs (lungs, heart valves, etctera) but drastically different immuno responses. Or rather, different severities of responses.

When a human's body tries to remove and kill off a contaminant, it raises its internal temperature above what viruses and bacteria can withstand. It also reduces overall system functions to divert resources and mass produces mucous to trap invaders and protect areas which might be otherwise exposed to external substances (such as the air in our esophaguses).

Midland Vulps do all of those, but their fevers reach higher temperatures (as fungi are a much bigger problem on Vulpin) and their mucous contains toxins intended to (1) more quickly kill off contagions (2) dissuade other organisms from trying to take a bite of them while ill. (Imagine if trees could snap you up if they thought you were easy pickin's; that's about what we're dealing with here.)

The problem is that those aforesaid temperatures would exceed human limits, with 103 degrees Fahrenheit being the average for a fever. If the Vulp systems catch a low grade fever, would this serve as a high grade infection for the rest of the body?

In the fic I've been tinkering with on-and-off, Work's In Progress, a combination of stress, willful sleep deprivation, mild malnutrition, menstruation, and consistent overworking causes Ren to get sick mid-fic, as it was originally supposed to be a slice of life story wherein Ren copes while being systemically disallowed from proper recovery (the Plumbers weren’t designed to accommodate chronic fatigue and Ren's learned to just fix things themself).

I do not know how sickness would work for them. I do not know if I should give them a high grade fever (by human terms); a lopsided sickness effecting their Vulp systems directly and the rest inadvertently; or if they should have some method to manage the extreme departures such that it doesn’t damage their human systems. Each would be portrayed very differently, especially since spoiler spoiler spoiler.

(Just kidding, Ren was volunteered for medical/psycnological observation by the Saturdays before they get sick, it was one of the things that was stressing them out. The Saturdays are well intentioned but wholly unprepared for the inner workings of the Plumbers, assuming instead that the leader with the supernaturally powerful offspring (grandchild) would behave similarly to themselves (familial/supportive rather than exploitative).)

(Ren is compliant with the Saturdays because they know it wouldn’t end well if they declined after having been volunteered by Max. For the Saturdays, this was originally a matter of networking; trying to get some business relationships in with the Alien departments given that their jobs occasionally overlaps. For the Plumbers and Galvans, this is part of a continuing political stunt on several fronts. (1) It reinforces that they have control over their potentially temperamental bioweapon (Ren/Omnitrix), (2) it signals that they surely care about this living person whom they certainly don't exploit as a scapegoat/lab rat, and (3) it functions as legal protection regarding Ren's functionality (healthy human versus machine versus dysfunctional animal).)