http://www.nbcnews.com/health/health...s-kids-n750276
CDC Still Stumped by Cause of Mystery Paralysis in Kids

by Maggie Fox

Health
Apr 24 2017, 3:29 pm ET

Disease detectives say they're still stumped by what causes a rare, polio-like paralyzing condition in kids and say they don't have a No. 1 suspect.
They've tested kids with acute flaccid myelitis for more than 250 different viruses and say no single one appears to be a major cause of the condition, which can leave patients disabled for months.
...
Not only that, but they can't say who's more at risk or how cases tend to progress, Tracy Ayers of the Centers for Disease Control and Prevention told a meeting of the CDC's Epidemic Intelligence Service.
"We have tested for over 250 different organisms that could be causing this," Ayers told reporters. "We are also expanding to look at non-infectious diseases."..