A health worker immunizes an infant in a field near Peshawar. Older siblings care for the child while tending their flock of sheep.

An Afghan refugee child, held by his mother, is vaccinated against polio. They live in the Jalozai camp, housing some 50,000 refugees, near Peshawar. Most arrived in 2000 and 2001, fleeing drought conditions and intensified fighting in Afghanistan.

Children attend a makeshift class in the Jalozai camp for Afghan refugees. Although access to Afghanistan during the November NID was cut-off for international immunizers, all major border crossings and refugee communities were covered on the Pakistani side.

A child is immunized in the village of Copar, in the Charsadda district near Peshawar.

Women administer oral polio vaccine in the village of Irro-Jo Whandhio in Mithi district. A tribal people living in the south-eastern Thar Desert, they share many of the customs of their neighbours in India's Rajasthan state.