Canadian Medical Guide > Diseases > Virus Diseases > Central Nervous System Viral Diseases Terms and Definitions

Central Nervous System Viral Diseases

Medical Definition:	Viral infections of the brain, spinal cord, meninges, or perimeningeal spaces.
Guide Notes:	coord IM with specific virus disease (IM) and specific site/dis term if pertinent; DF: CNS VIRAL DIS
Previously Indexed:	Central Nervous System Diseases (1966-1999),Encephalitis (1967-1999),Meningitis, Viral (1967-1999),Virus Diseases (1966-1999)

Central Nervous System Viral Diseases Categories.

	Encephalitis - Inflammation of the BRAIN due to infection, autoimmune processes, toxins, and other conditions. Viral infections (see ENCEPHALITIS, VIRAL) are a relatively frequent cause of this condition.
	Meningitis, Viral - Viral infections of the leptomeninges and subarachnoid space. TOGAVIRIDAE INFECTIONS; FLAVIVIRIDAE INFECTIONS; RUBELLA; BUNYAVIRIDAE INFECTIONS; ORBIVIRUS infections; PICORNAVIRIDAE INFECTIONS; ORTHOMYXOVIRIDAE INFECTIONS; RHABDOVIRIDAE INFECTIONS; ARENAVIRIDAE INFECTIONS; HERPESVIRIDAE INFECTIONS; ADENOVIRIDAE INFECTIONS; JC VIRUS infections; and RETROVIRIDAE INFECTIONS may cause this form of meningitis. Clinical manifestations include fever, headache, neck pain, vomiting, PHOTOPHOBIA, and signs of meningeal irritation. (From Joynt, Clinical Neurology, 1996, Ch26, pp1-3)
	Myelitis - Inflammation of the spinal cord. Relatively common etiologies include infections; AUTOIMMUNE DISEASES; SPINAL CORD; and ischemia (see also SPINAL CORD VASCULAR DISEASES). Clinical features generally include weakness, sensory loss, localized pain, incontinence, and other signs of autonomic dysfunction.
	Pseudorabies - A highly contagious herpesvirus infection affecting the central nervous system of swine, cattle, dogs, cats, rats, and other animals.

Central Nervous System Viral Diseases Medical Definitions and Terms

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