Polio vaccination workers under attack

A Pakistan health worker gives polio drops to a flood affected child at a makeshifts camp on the outskirts of Karachi on September 29, 2010. The United Nations called for 180 million dollars to feed six million flood victims in Pakistan till the end of this year. Torrential rain began falling in northern Pakistan in July and the floods have since moved slowly south, wiping out villages and farmland, and affecting an area roughly the size of England. AFP PHOTO/ RIZWAN TABASSUM (Photo credit should read RIZWAN TABASSUM/AFP/Getty Images)

Polio vaccination workers under attack

Gulnaz is one of Pakistan's polio vaccine workers - an occupation that carries extraordinary risks. Saima Mohsin reports.

03:07 - Source: CNN

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A Pakistan health worker gives polio drops to a flood affected child at a makeshifts camp on the outskirts of Karachi on September 29, 2010. The United Nations called for 180 million dollars to feed six million flood victims in Pakistan till the end of this year. Torrential rain began falling in northern Pakistan in July and the floods have since moved slowly south, wiping out villages and farmland, and affecting an area roughly the size of England. AFP PHOTO/ RIZWAN TABASSUM (Photo credit should read RIZWAN TABASSUM/AFP/Getty Images)

Polio vaccination workers under attack

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