So, is it a wig? Claudia Winkleman laughs. 'No! Feel it!' She leans forward, offering the ends of her implausibly silky black hair. 'Pull it!' So I do, reluctantly and gently. It's real.

The Centre Regional Unit of the Expanded Programme on Immunization, EPI, field officials from three health districts in Mfoundi Division, and the Seed of Health And Development, SHAD evaluated a ...