Illinois health officials now report nine cases of a rare polio-like illness that has popped up in several states. It’s called Acute Flaccid Myelitis. The horrible disease infects children, and has infected over forty children across the country. Doctors started seeing cases of this disease in 2014 and the CDC has seen over 300 cases since then. The disease originated in Colorado but has spread as far as Canada.
Officials still don't know what causes the disease. Some possible causes are: viruses, genetic disorders, or environmental toxins.
Here's a bit about the disease, according to MedlinePlus:
"Acute flaccid myelitis(AFM) is a neurologic disease. It is rare, but serious. It affects an area of the spinal cord called gray matter. This can cause the muscles and reflexes in the body to become weak. Because of these symptoms, some people call AFM a "polio-like" illness."