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Often following a respiratory illness, the symptoms may occur:
Contact your healthcare provider as soon as possible if you see any symptoms of AFM in yourself or your child, for example, if your child is not using his/her arm, or other signs of sudden muscle weakness.
AFM can be diagnosed by examining a person's nervous system which includes a physical examination of weakened muscles and reflexes, taking a Magnetic Resonance Imaging (MRI) scan of the brain and spinal cord, and testing stool, respiratory, sera, and cerebral spinal fluid specimens.
It is important that tests are done as soon as possible after someone develops symptoms.