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Vaccine, Vol. 19 (31) (2001) pp. 4378 - 4384
Published by Elsevier Science B.V.
PII: S0264-410X(01)00144-X
Department of
Vaccines and Biologicals, World Health Organization, 1211 Geneva Switzerland
Received 21 September 2000; accepted
25 September 2000
Twelve years after the global polio eradication goal was set, polio cases
have declined by more than 95% world-wide. Polio immunization campaigns have
been conducted in every endemic country with as many as 470 million children
immunized per year. Intense wild poliovirus transmission is now limited to
South Asia and sub-Saharan Africa. To achieve eradication at the earliest
possible date, immunization campaigns are being intensified in the remaining
endemic countries. Major programmatic challenges include reaching vulnerable
children in areas with armed conflict and ensuring full financial and political
support for the initiative. With global eradication imminent, WHO is preparing
for post-eradication issues: containment of polioviruses, certification of eradication,
and stopping immunization.
Keywords: Poliomyelitis eradication immunization
*Corresponding author. Tel.: +41-22-791-4363; fax: +41-22-7914193
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