Why does West Nile virus cause flaccid paralysis?

Why does West Nile virus cause flaccid paralysis?

Since then, acute flaccid paralysis has become an established complication of West Nile virus, presumed to result from direct involvement of the anterior horn cells of the spinal cord by the infection [6].

What is flaccid myelitis?

Español (Spanish) Acute flaccid myelitis (AFM) is an uncommon but serious neurologic condition. It affects the nervous system, specifically the area of the spinal cord called gray matter, which causes the muscles and reflexes in the body to become weak.

What causes AFM illness?

AFM is thought to be caused by infections with different types of viruses. The infections most commonly mentioned with AFM include polio or West Nile virus and related infections. Most patients with AFM have a respiratory illness or fever before their limbs are affected.

Can West Nile paralyze you?

Infections with the mosquito-borne West Nile virus have been known to lead to neurological problems, including paralysis, though these results are rare.

Can you recover from flaccid paralysis?

Publications regarding longer-term outcomes and prognosis in children with acute flaccid myelitis are early in development and, thus far, only provide data for 6 to 12 months from onset. While most reports suggest that patients regain some strength over time, many do not recover full function.

What does flaccid mean in biology?

(in botany) Describing plant tissue that has become soft and less rigid than normal because the cytoplasm within its cells has shrunk and contracted away from the cell walls through loss of water (see plasmolysis). From: flaccid in A Dictionary of Biology »

What does flaccid mean in medical terms?

Medical Definition of flaccid : not firm or stiff also : lacking normal or youthful firmness flaccid muscles. Other Words from flaccid.

What are the symptoms of acute flaccid myelitis?

The most common signs and symptoms of acute flaccid myelitis include: Sudden arm or leg weakness….Other possible signs and symptoms include:

• Difficulty moving the eyes or drooping eyelids.
• Facial droop or weakness.
• Difficulty with swallowing or slurred speech.
• Pain in the arms, legs, neck or back.

Can acute flaccid myelitis be cured?

There is no specific treatment to cure acute flaccid myelitis. But doctors can give treatment to help manage the symptoms. You may get physical or occupational therapy to help regain function in your arms and legs. For severe AFM that causes problems breathing, you will get care in the hospital.

Can adults get AFM virus?

The number of cases of AFM has been rising. However, the Centers for Disease Control and Prevention predict that less than 1 person per 1 million people per year in the US will develop AFM. So far, most of the reported cases have involved people younger than age 18, but adults can get AFM.

Is there a cure for AFM?

There is no specific treatment for AFM, but a clinician who specializes in diseases like AFM may recommend certain interventions on a case-by-case basis. For example, clinicians may recommend physical or occupational therapy to help with arm or leg weakness caused by AFM.

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