Yep this is important; Polio presented a lot like the flu, it wasn't until years or decades later that symptoms showed up. They didn't call it "long polio" thou

Yep this is important; Polio presented a lot like the flu, it wasn't until years or decades later that symptoms showed up. They didn't call it "long polio" though, they called it "post-polio syndrome". Famous author of 2001: A Space Odyssey Arthur C. Clarke ended up in a wheelchair decades due to post-polio syndrome after he contracted polio