FIGURE 1—Distribution of endemic poliomyelitis (dark gray) (a) in 1988, the year the World Health Assembly voted to eradicate the disease and at which time polio was present in more than 125 countries, and (b) at the end of 2003, when endemic polio was limited to 6 countries.
FIGURE 2—Reported polio cases in Africa (January 1, 2003, to July 31, 2004) and countries participating in synchronized outbreak response campaigns in late 2004.