The WAPO article about cases of polio like paralysis from an enterovirus.
Just a couple dozen cases a year, but a recent upspike in cases has people worried.
I am old enough to remember the polio epidemics in the 1950's, when we couldn't go to the local swimming pool in August because of the outbreak. Two of my friends caught polio, and in later years I met two doctors who had caught the disease caring for folks (one who ended up in a wheelchair).
Polio is an "enterovirus": The virus causes stomach flu/diarrhea. Only one strain of the polio virus causes paralysis.
But we also learned that other enteroviruses could cause paralysis, but that these cases were rare. But when we had outbreaks of some types, we also would see viral meningitis or encephalitis.
So this is not a puzzle, but I will report more when I see the actual CDC or medical articles on the virus.