"What do you think is the cause?"
Uncontrolled illegal immigration.
What, you think there is no cost to this immigration insanity?
Build the wall and deport all the illegals; the incidence of the disease will decline to zero.

When I started to read the article, I thought it was going to be a parody on the virus infecting everyone who votes for socialist Dems and Repubs.

During Grand Solar Minimums, with changing weather and animal migration, patterns; cosmic ray risks...all sorts of/ old/mixed diseases crop up and new one's arise.

A little more info.
https://www.cbsnews.com/news/polio-li...

My dad had the same symptoms. I think this may be the same illness he was diagnosed with. Myasthenia Gravis. In fact...I'm saying that's what this probably is.