What is the most fatal brain disease?

Creutzfeldt-Jakob disease (CJD) is the most fatal brain disease. It is a rare, degenerative disorder that affects the brain and nervous system. CJD is caused by a type of abnormal protein called a prion. Prions are infectious agents that are resistant to heat, radiation, and proteolytic enzymes. They can be transmitted through contact with infected tissue, blood, or cerebrospinal fluid.

CJD is characterized by a rapidly progressive dementia. Symptoms of CJD may include memory loss, confusion, disorientation, hallucinations, seizures, muscle spasms, and difficulty speaking and swallowing. The disease typically progresses rapidly, leading to death within a few months.

There is no cure for CJD. Treatment is focused on relieving symptoms and providing supportive care.