## Core Concept
Rabies is a viral disease that affects the central nervous system (CNS) of mammals, including humans. It is primarily transmitted through the saliva of infected animals, usually via a bite. The disease causes inflammation of the brain, leading to severe and often fatal symptoms.

## Why the Correct Answer is Right
The correct answer relates to the specifics of rabies infection, which are not provided in the question. Generally, statements about rabies might include its transmission method, symptoms, the importance of post-exposure prophylaxis (PEP), and its almost invariably fatal outcome if not treated promptly.

## Why Each Wrong Option is Incorrect
- **Option A:** Without specific details on what option A states, it's challenging to provide a direct explanation. However, if option A makes a claim that is generally accepted as true about rabies (e.g., it's transmitted via saliva, it's fatal if not treated promptly), then it would not be the correct answer because the question asks for the statement that is not true.
- **Option B:** Similarly, without the content of option B, we can't directly address why it's incorrect. If it inaccurately describes a characteristic of rabies, such as suggesting it's primarily spread through respiratory droplets or that vaccination is not effective, it would be considered incorrect based on established facts about the disease.
- **Option C:** This option's accuracy depends on its content. If it presents a false claim about rabies, such as a misleading treatment option or an incorrect mode of transmission, it would be the one that stands out as not true.
- **Option D:** Like the others, without specifics, we can't directly refute it. If option D presents an accurate statement about rabies, it wouldn't be the correct choice for an "except" question.

## Clinical Pearl / High-Yield Fact
A critical point to remember about rabies is that **post-exposure prophylaxis (PEP)**, which includes immediate washing of the wound, administration of rabies immunoglobulin, and a series of vaccinations, is highly effective in preventing the disease if administered promptly after a bite. A classic clinical pearl is that rabies is almost invariably fatal once symptoms appear, making timely intervention crucial.

## Correct Answer: D.