Polio vaccinations in Gaza: UN rolls out campaign after first case in 25 years

Children in central Gaza are being vaccinated against the polio virus for a second day.
The vaccines are being given in the Deir el-Balah and az-Zawayda refugee camps.
The campaign there will last until Wednesday.
It will then move into northern and southern areas of the Strip.
The UN is hoping to immunise 640,000 children under the age of ten.

As Imogen Kimber reports, polio isn't the only communicable disease threatening Palestinians across Gaza.