Olivier Asselin photography

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A health worker marks a house with chalk to indicate that children have been vaccinated during a national polio immunization exercise in Salaga, northern Ghana on Thursday March 26, 2009.

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Filename: GHA09.0326.POLIO0524.JPG
Copyright: Olivier Asselin
Image Size: 3723x2482 / 4.2MB; ghana africa polio vaccination immunization health vaccine
Contained in galleries: Ghana Polio Vaccination Campaign

A health worker marks a house with chalk to indicate that children have been vaccinated during a national polio immunization exercise in Salaga, northern Ghana on Thursday March 26, 2009.