(Fort Worth, TX) — The Centers for Disease Control is investigating a polio-like disease that’s afflicted at least three children in North Texas.

There have been three confirmed cases of Acute Flaccid Myelitis, or AFM, at Cook Children’s Medical Center in Fort Worth.  The CDC says more than three-dozen cases have cropped up this year in 16 states, including Texas.  Doctors say AFM is caused by a virus and affects the nervous system.  It’s not contagious, but there’s no known cure.