Travellers from Pakistan should have a full course of vaccination against polio before leaving Pakistan, with a minimum one dose of OPV before departure.

This photo story shows how the polio vaccination campaign was organized in remote regions of Afghanistan and Pakistan and along the porous border between the two countries.

The majority of cases in 2010 were in countries that had been polio-free until the virus travelled back across borders and caused outbreaks in areas where people had gotten lax about vaccination.