Charlotte Observer | 09/24/2002 | Doctors say West Nile also causing polio

Well, polio-like symptoms. I'm not a doctor, nor do I play on on TV, but it seems to me that if it's not caused by the poliomyelitis virus (extinct, in the United States anyway) or even a related virus, it's not polio. But it certainly adds another reason for fear. The good news is that a West Nile vaccine might be only three years away. They got a head start because WN is related to yellow fever and they can build on the vaccine for that.