Eradicating polio in India

The slums are inhabited by Bangali migrants who make a living from recycling rubbish. They are Muslim, orginally from Bangladesh and Assam. Photograph: JEAN-MARC GIBOUX/guardian.co.uk

People at the official Launch of the polio vaccination campaign, at the India Islamic Center in Lucknow, Uttar Pradesh on 8 November Photograph: JEAN-MARC GIBOUX/guardian.co.uk

Official Launch of the polio vaccination campaign, at the India Islamic Center in Lucknow, Uttar Pradesh on 8 November Photograph: JEAN-MARC GIBOUX/guardian.co.uk

Raw sewage in the streets of Lucknow, Uttar Pradesh, Bad sanitation is a key cause of the spread of polio Photograph: JEAN-MARC GIBOUX/guardian.co.uk

Polio vaccine bottles. The light blue square tells medics that the vaccine is fresh Photograph: JEAN-MARC GIBOUX/guardian.co.uk

Afsar Jahan (left) and her daughter Saba Banu. Saba contracted polio as a child and now has to use crutches Photograph: JEAN-MARC GIBOUX/guardian.co.uk

People who work in the brick factories around Lucknow are particularly pronce to catching polio . Many of the migrant workers have young children, and immunising them is vital of the disease is to be eradicated Photograph: JEAN-MARC GIBOUX/guardian.co.uk

British medics immunise children in the streets of Lucknow Photograph: JEAN-MARC GIBOUX/guardian.co.uk