Do they not know anything about rabies?

I mean, this episode was just extra implausible with the way they handled the rabies. Normally I don't have a problem ignoring the implausibility and just enjoying the episode as the entertainment it's meant to be, but there were just so many things wrong with the info in regards to rabies, which was such a huge plot point in the episode I just couldn't.

We'll ignore for a moment the fact that it's unlikely that zoologists studying bats aren't vaccinated against rabies. Maybe they just aren't very smart, so decided to skip getting vaccinated, or forgot to get their titres checked to make sure they don't need the vaccine boostered. Or something. Because that's a high risk profession, and would be one that SHOULD get vaccinated. But, anyway, let's say they're unvaccinated.

Problem 1: The speed at which they become symptomatic for rabies. It's unclear how long they've been in the caves, but I'd say maybe a day tops based on the timeline, correct me if I'm wrong. The incubation period for rabies is 30-60 days. Meaning the time from being infected (ie, bitten) to when you first develops symptoms is on average 30-60 days in people. In rare, extreme cases, symptoms have been documented as soon as 5 days after exposure. Still much longer than it's suggested the zoologists were in the caverns. But we'll let that slide due to the fact that we're told it's an extra virulent strain of rabies. OK.

Problem 2: Toby informs us that all the symptoms the male zoologist is experiencing are symptoms of the rabies he's been infected with, the agitation, hallucinations, speech patterns, etc. OK. Those can absolutely be symptoms of rabies, and in fact fit with the more common presentation ("furious" rabies). Not a problem. But then he goes on to make the statement that due to his being symptomatic, the man has 30 minutes to be treated with "rabies serum" or he is going to die. I'm sorry, wait, what? Pause. Rewind. No, I did not mishear what he just said. He says that this man, symptomatic for rabies, has a chance at living if treated with rabies serum in the next 30 minutes. Well, there goes any chance of taking this episode seriously. With very few exceptions (I believe 5 documented cases), once you develop symptoms of rabies you have NO CHANCE of survival, and even if you were to be fortunate enough to be one of those exceptions? It's a heck of a lot more involved than treatment with "rabies serum". Google Milwaukee Protocol, it requires induction of a coma, and numerous medications.

Side note: Also, "rabies serum"? I can only assume he means human immunoglobulins, which are sometimes referred to as "antirabies serum". Which takes us to:

Problem 3: Post exposure treatment of rabies with human immunoglobulin injections, or "antirabies serum". The immunoglobulins are NOT tailored based upon what species of animal bit you. There are human immunoglobulin, and equine. Both are harvested from the serum (blood without the red blood cells, etc) of a human or equid vaccinated with rabies, as these individuals if current on their vaccines, will have protective levels of immunoglobulins for the virus in their blood stream. These are injected into an exposed patient around the area of the bite. IF THEY ARE SYMPTOMATIC ALREADY, as in the case of the zoologist in this episode, the injections WILL NOT MIRACULOUSLY SAVE YOU, they only are of benefit to you if you're not yet symptomatic, and ideally, in combination with a series of rabies vaccinations, also administered post exposure. So that whole scene with him sorting through vials and needing the right species to save the patient was total bull, and an injection of "rabies serum" was NOT going to save this man, anyway.

Problem 4: human immunoglobulins ("rabies serum") is NOT going to be found at a little shack in the middle of nowhere rural wherever they were, it's not in large supply, especially in rural areas. The hospital may have had it, the small doc in a box in the middle of nowhere, absolutely not.

tl;dr: The guy with rabies would not have been symptomatic that quickly, and had essentially zero chance of survival since he was symptomatic, and the very very very very slim chance at survival he might have requires medically induced coma, and not just human immunoglobulins which will NOT help you once symptomatic, and are NOT specific to the species of animal that infected you.

And PSA: If you ever, ever get bit by an animal that you don't know if it was vaccinated, or is a wild animal, go to a doctor. Get post exposure treatment. Don't wait until you have symptoms. You WILL die.