Rabbies is identified by –
**Core Concept**
Rabies is a viral disease characterized by inflammation of the central nervous system, caused by a lyssavirus that affects the brain and nervous system of mammals, including humans. The virus is primarily transmitted through the saliva of infected animals, usually through a bite.
**Why the Correct Answer is Right**
The correct answer is likely based on the clinical presentation of rabies, which includes symptoms such as fever, headache, agitation, confusion, and paralysis of the face, arms, and legs. The virus affects the brain and nervous system by causing inflammation and damage to the neurons, leading to the characteristic symptoms of the disease. The correct answer may also involve the involvement of the limbic system, which is responsible for emotional responses, and the cerebellum, which controls coordination and balance.
**Why Each Wrong Option is Incorrect**
**Option A:** This option may involve a different viral disease, such as herpes simplex encephalitis, which also affects the central nervous system but has a different clinical presentation and transmission route.
**Option B:** This option may involve a bacterial infection, such as tetanus, which is also transmitted through animal bites but has a different clinical presentation and treatment.
**Option C:** This option may involve a fungal infection, such as cryptococcal meningitis, which is a different type of central nervous system infection with a different clinical presentation and treatment.
**Clinical Pearl / High-Yield Fact**
Rabies is almost always fatal if left untreated, and prompt medical attention is essential for survival. The incubation period of the disease can range from a few days to several months, and early symptoms may be flu-like or similar to other viral infections.
**Correct Answer:** D.