Vaccine-derived poliomyelitis in Nigeria

摘要

Eradicating poliomyelitis presents many challenges. Financing essential activities can be difficult when donors fail to meet funding targets (a USDollars 60 million funding gap currently exists for the fourth quarter of 2007). Security issues in two of the four polio-endemic countries-Afghanistan and Pakistan-make access to children difficult for immunisation teams. And in Nigeria, low vaccine coverage and an outbreak of disease from vaccine-derived poliovirus (VDPV) could set back global eradication efforts