Acute Flaccid Myelitis (AFM)

What is AFM?

Acute flaccid myelitis (AFM) is a rare but serious 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. We are working closely with national experts to better understand AFM and the outbreaks.
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New AFM Report

New CDC Vital Signs report focuses on the 2018 AFM outbreak in the U.S.

Father stands over sick son in hospital bed. Doctor writing on clipboard.

New AFM Report

New CDC Vital Signs report focuses on the 2018 AFM outbreak in the U.S.

Doctor talking with mother and her son

About Acute Flaccid Myelitis

Learn about symptoms of AFM and how it’s diagnosed.

How to spot symptoms of AFM in your child

How to spot symptoms of AFM in your child

Acute flaccid myelitis, or AFM, is a rare but serious condition that affects the nervous system.