The Polio Plus project, as mentioned, was started by Rotary International, and is also heavily supported by the Bill and Melinda Gates foundation. To the tune of billions of $ per year.
A good map of the current status of Polio can be found here:
http://polioeradication.org/polio-today/polio-now/The last reservoir of wild polio virus (WPV) is primarily in the Pakistan / Afghanistan border areas, and is proving to be very difficult to erase. Suspicion of vaccination teams is high, and the fact that a CIA team surveiled Osama Bin Laden's hiding place disguised as polio vaccination workers has, naturally, increased that suspicion. Vaccine workers have been injured, and killed. They are, in my mind, saints.
The story in Nigeria is much the same, with Muslim "clerics" denouncing polio vaccines as work of the devil, condemning those who listen to a real hell on earth. Fortunately, most mothers have more sense than clerics and many find ways to vaccinate their children, at huge risks to their own lives.
