A80-A89: Viral infections of the central nervous system
A81: Atypical virus infections of central nervous system
The group of conditions classified under Atypical virus infections of the central nervous system include unique viral infections that primarily affect the brain and spinal cord. Typically, these viruses are transmitted to humans through various mechanisms, such as bites from infected animals or insects, ingestion of contaminated food or water, or exposure to an infected person's respiratory droplets. Common symptoms of these conditions often start with flu-like signs such as fever and fatigue, which may progress to more serious symptoms like confusion, severe headache, stiff neck, and seizures based on the specific infection and severity of infection. As the disease progresses, it may lead to long-term neurological complications, including paralysis, cognitive problems or even death. These infections can disrupt the normal functioning of the central nervous system, causing significant impact on a patient's life.
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