Kenya. Rift Valley province. Kasambara (20 km from Nakuru). Rhein-Valley hospital is ran by a swiss non-governmental organization (NGO). As part of kenyan expanded immunization program, the children are vaccinated to Diphteria, Pertussis, Tetanus, Hepatitis B and Influenza Type B with a single injection. A young black boy from the Kikuyu tribe and the arms of his mother. The Kikuyus are Kenya's most populous ethnic group. © 2008 Didier Ruef