Evidence Links Poliolike Disease in Children to a Common Type of Virus

October 21, 2019

(Science) – Researchers seeking the cause of mysterious cases of childhood paralysis seem to be closing in on a culprit. Since 2014, more than 500 children in the United States have suddenly lost muscle control in their arms and legs, a condition called acute flaccid myelitis (AFM), which can cause permanent disability. But the leading explanation—that a normally mild viral infection occasionally results in AFM—has been hard to prove. A new analysis of young patients’ spinal fluid now offers evidence linking a group of common viruses known as enteroviruses to AFM. But questions remain about how such viruses damage nerves and why they seem to do so only rarely.

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