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Acute Flaccid Myelitis AFM

Media Type

Online Resource

Reviewed Date

Oct 16, 2025

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AFM is a rare and serious disease that affects the spinal cord; the part of the nervous system that carries messages from the brain to the body, and causes the muscles and reflexes in the body to weaken. AFM is a polio-like neurologic disease.

Symptoms include:

  • Facial drop and weakness
  • Drooping eyelids, or difficulty moving eyes
  • Slurred or difficult speech and swallowing
  • Sudden weakness in arms or legs
  • Loss of muscle tone and reflexes
  • Pain in arms or legs is sometimes present
  • Respiratory failure

Many times symptoms develop after a viral infection such as poliovirus, West Nile Virus, and Adenovirus, or even a serious cold. AFM is often confused as Guillain-Barré syndrome (GBS) or acute disseminated encephalphalomyelitis, and transverse myelitis.


This page explains that acute flaccid myelitis (AFM) is a rare but serious neurologic condition that primarily affects the spinal cord, causing sudden muscle weakness and loss of reflexes, most often in young children. It covers AFM’s symptoms, causes, diagnosis, prevention, and treatment options, providing resources for families and clinicians to better understand and manage the condition
Phone: 800.232.4636


This page from the National Institutes of Health provides an overview of acute flaccid myelitis (AFM), a rare neurological condition that affects the spinal cord and leads to sudden muscle weakness, loss of reflexes, and sometimes difficulty with breathing, swallowing, or facial movement. It describes AFM’s symptoms, diagnostic process, and the typical course of the disease, offering resources for patients and families seeking more information.
Phone: 888.205.2311


The KidsHealth page from Nemours KidsHealth? explains that acute flaccid myelitis (AFM) is a rare condition affecting the spinal cord, causing sudden muscle weakness and floppy limbs, most often in children. It describes AFM’s symptoms, possible causes, prevention tips, and emphasizes the importance of seeking immediate medical care if symptoms appear.
No phone number listed


The SRNA (Siegel Rare Neuroimmune Association) page provides detailed information about transverse myelitis, an inflammatory condition of the spinal cord that can cause muscle weakness, sensory changes, and autonomic dysfunction. It covers the causes, symptoms, diagnosis, treatment options, and prognosis, offering resources and support for individuals and families affected by transverse myelitis.
No phone number listed

 

You Might Also Be Interested In:

Guillain-Barré syndrome (GBS) Information Resources LIFE Center Resources

This content is for informational purposes only and may not be comprehensive. Information contained does not imply an endorsement from Shirley Ryan 星空传媒视频, and does not replace the advice of a qualified healthcare professional.  See here  for further details.
? Shirley Ryan 星空传媒视频 (formerly Rehabilitation Institute of Chicago)
Henry B. Betts LIFE Center – (312) 238-5433

 

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