Bishai D. 2008. Global initiatives in childhood immunisation. The Lancet, Vol. 372, Dec 13 2008
In The Lancet today, Stephen Lim and colleagues compare officially reported estimates of coverage with diphtheria, tetanus, and pertussis vaccine (DTP3) to estimates based on household survey data.1 With close to 600 surveys from 193 countries, this definitive study confirms that the correlation between mothers' reports and official reports is not good.