Intensification of polio eradication efforts worldwide raises concerns
about costs and benefits for poor countries. A major argument for glo
bal funding is the high benefit-cost ratio of eradication; however, fi
nancial benefits are greatest for rich countries. By contrast, the gre
atest costs are borne by poor countries; the Pan American Health Organ
ization has estimated that host countries bore 80% of costs for polio
eradication in the Americas. The 1988 World Health Assembly resolution
setting up the polio Eradication Initiative carried the proviso that
programs should strengthen health infrastructures. Drastic cuts in don
or funding for health make this commitment even more important. Two in
ternational evaluations have reported both positive and negative effec
ts of polio and Expanded Programme on Immunization programs on the fun
ctioning and sustainability of primary health care. Negative effects w
ere greatest in poor countries with many other diseases of public heal
th importance. If poor countries are expected to divert funds from the
ir own urgent priorities, donors should make solid commitments to long
-term support for sustainable health development.