Acute Flaccid Myelitis (AFM)

Acute Flaccid Myelitis (AFM) is a rare condition that affects the nervous system, specifically the spinal cord. It has a variety of causes, including viral infections. A person who appears to have a sudden onset of weakness in the arms or legs, should contact a health care provider.

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Cases of acute flaccid myelitis in Colorado by onset year

 Onset year  
 Number of cases*
2014
11
2015
1
2016
1
2017
1
2018
17**
2019 1
2020 2
2021 0 cases to date
 
*Numbers reflect confirmed and probable AFM cases. CDC reports only confirmed cases, so numbers may differ.
**12 of 17 cases of acute flaccid myelitis tested positive for enterovirus A-71, two tested positive for enterovirus D-68, three were negative for enteroviruses.
 
Last updated: May, 10, 2021

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