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A80-A89 Viral & Prion Infections-

Central Nervous System

A80 Acute Poliomyelitis

A81 Atypical Virus Infections-Central Nervous System

A82 Rabies

A83 Mosquito-Borne Viral Encephalitis

A84 Tick-Borne Viral Encephalitis

A85 Other Viral Encephalitis-Not Elsewhere Classified

Viral and prion infections of the central nervous system A80-A89 >

 

Acute poliomyelitis A80- >

 

Clinical Information

Acute infectious disease of humans, particularly children,

caused by any of three serotypes of human poliovirus; infection is

usually limited to the gastrointestinal tract and nasopharynx, and

is often asymptomatic; the central nervous system, primarily the

spinal cord, may be affected, leading to rapidly progressive paralysis,

coarse fasciculation and hyporeflexia; motor neurons are primarily

affected and encephalitis may also occur; replicates in the nervous

system, and may cause significant neuronal loss, most notably in the

spinal cord.

An acute infectious disease of humans, particularly children, caused

by any of three serotypes of human poliovirus (poliovirus). Usually

the infection is limited to the gastrointestinal tract and nasopharynx,

and is often asymptomatic. The central nervous system, primarily the

spinal cord, may be affected, leading to rapidly progressive paralysis,

coarse fasciculation and hyporeflexia. Motor neurons are primarily

affected. Encephalitis may also occur. The virus replicates in the

nervous system, and may cause significant neuronal loss, most

notably in the spinal cord. A rare related condition, nonpoliovirus

poliomyelitis, may result from infections with nonpoliovirus enteroviruses.

An acute infectious disorder that affects the nervous system. It is caused

by the poliovirus. The virus spreads by direct contact, and can be prevented

by prophylaxis with the polio vaccine.

 

Rabies A82- >

 

Clinical Information

A disease of the nervous system caused by the rabies virus. Rabies is

marked by an increase in saliva production, abnormal behavior, and

eventual paralysis and death.

A life-threatening viral infection caused by the neurotropic rabies

virus. It is transmitted to humans usually from a bite by an infected

dog. The initial signs and symptoms include malaise, fever, and headache,

followed by the central nervous system manifestations which include abrupt

behavioral changes. Paralysis, lethargy, and coma follow the behavioral

changes.

Acute infectious disease of the central nervous system affecting almost

all mammals, including humans; it is caused by a rhabdovirus and usually

 spread by contamination with virus-laden saliva of bites inflicted by

 rabid animals; important animal vectors include the dog, cat, vampire bat,

 mongoose, skunk, wolf, raccoon, and fox.

Acute viral cns infection affecting mammals, including humans. It is caused

by rabies virus and usually spread by contamination with virus-laden saliva

of bites inflicted by rabid animals. Important animal vectors include the

dog, cat, bat, fox, raccoon, skunk, and wolf.

Rabies is a deadly animal disease caused by a virus. It can happen in wild animals,

including raccoons, skunks, bats and foxes, or in dogs, cats or farm animals.

People get it from the bite of an infected animal. In people, symptoms of rabies

include fever, headache and fatigue, then confusion, hallucinations and paralysis.

Once the symptoms begin, the disease is usually fatal. A series of shots can

prevent rabies in people exposed to the virus. You need to get them right away.

If an animal bites you, wash the wound well; then get medical care. To help prevent rabies

vaccinate your pet. Rabies vaccines are available for dogs, cats and farm animals

don't let pets roam don't approach stray animals. Animals with rabies might be

aggressive and vicious, or tired and weak

 

Tick-borne viral encephalitis A84- >

 

Includes

tick-borne viral meningoencephalitis

Clinical Information

Encephalitis caused by neurotropic viruses that are transmitted via the bite of

ticks. In europe, the diseases are caused by encephalitis viruses, tick-borne,

 which give rise to russian spring-summer encephalitis, central european

 encephalitis, louping ill encephalitis, and related disorders. Powassan

 encephalitis occurs in north america and russia and is caused by the powassan

 virus. Aseptic meningitis and rarely encephalitis may complicate colorado

 tick fever which is endemic to mountainous regions of the western United States.

 

Unspecified viral encephalitis A86- >

 

Applicable To

Viral encephalomyelitis NOS

Viral meningoencephalitis NOS

Clinical Information

Inflammation of brain parenchymal tissue as a result of viral infection.

Encephalitis may occur as primary or secondary manifestation of togaviridae

infections; herpesviridae infections; adenoviridae infections; flaviviridae

infections; bunyaviridae infections; picornaviridae infections; paramyxoviridae

infections; orthomyxoviridae infections; retroviridae infections; and

arenaviridae infections.

 

Viral meningitis A87- >

Clinical Information

Viral infections of the leptomeninges and subarachnoid space.

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;

 enoviridae 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.

 

A86 Unspecified Viral Encephalitis

A86

Unspecified Viral Encephalitis

A87 Viral Meningitis

A88 Other Viral Infections Central Nervous System-Not Elsewhere Classified

A89 Unspecified Viral Infection Central Nervous System

A89

Unspecified Viral Infection Central Nervous System

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