AFM is an uncommon but serious neurologic condition. Learn about AFM, cases and outbreaks, information for parents and information for clinicians.

2024年6月5日 · There have been 769 confirmed cases since CDC began tracking AFM in August of 2014. Annual maps represent only cases for whom information was sent to and confirmed by CDC as of March 3, 2025. Patients under investigation are still being classified, and the case counts are subject to change.

2024年6月3日 · CDC provides clinical guidance based upon the review of available scientific literature on AFM and individual input from subject matter experts. Clinicians should immediately consult with their local neurologists and/or infectious disease specialists for treatment and medical management decisions for any suspected AFM patient.

There have been 751 confirmed cases since CDC began tracking AFM in August of 2014. CDC has been thoroughly investigating cases since that time. We have seen increases in AFM cases, mostly in young children, in 2014, 2016 and 2018.

How is AFM diagnosed? A doctor can tell the difference between AFM and other diseases with a careful examination of the nervous system, looking at the location of the weakness, muscle tone, and reflexes. Magnetic resonance imaging (MRI) can be very helpful in diagnosing cases of AFM. What causes AFM?

2020年10月9日 · Access Acute Flaccid Myelitis (AFM) case definitions; uniform criteria used to define a disease for public health surveillance.

Since 2014, CDC has conducted surveillance for AFM, including laboratory testing and typing of EV-positive samples to better understand the demographic and clinical characteristics and possible causes of AFM. This report updates AFM surveillance data since 2018, the most recent reported peak year for AFM.

2021年8月30日 · Acute flaccid myelitis (AFM) is characterized by rapid onset of flaccid weakness in one or more limbs and distinct abnormalities of the spinal cord gray matter on magnetic resonance imaging (MRI).

In 2012, CDPH began receiving reports of patients with an unusual condition called acute flaccid myelitis (AFM). Since then, there have been statewide and nationwide spikes in AFM cases noted in the summer and fall months of 2014, 2016 and 2018. AFM patients are primarily children, although cases have also been reported in adults.

How is AFM diagnosed? A doctor can tell the difference between AFM and other diseases with a careful examination of the nervous system, looking at the location of the weakness, muscle tone, and reflexes. Magnetic resonance imaging (MRI) can be very helpful in diagnosing cases of AFM. What causes AFM?