HENDERSON - 1973 



 


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2005

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20 Nov 2005

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METHODOLOGY

Henderson RH et al. Assessment of vaccination coverage, vaccination scar rates, and smallpox scarring in five areas of West Africa. Bulletin of the World Health Organization 48(2), 183-194, 1973.

pp. 183-188

pp. 188-194

In 1966, nineteen countries of West and Central Africa began a regional smallpox eradication and measles control programme in cooperation with the World Health Organization. This paper summarizes sample survey data collected to assess the results of the programme in Northern Nigeria (Sokoto and Katsina Provinces), Western Nigeria, Niger, Dahomey, and Togo. These data indicate that the programme, which used mass vaccination campaigns based on a collecting-point strategy, was generally successful in reaching a high proportion of the population. Analysis of vaccination coverage and vaccination scar rates by age underlined the importance to the programme of newborn children who accumulate rapidly following the mass campaign. Of all persons without vaccination scars at the time of the surveys, 34.4% were under 5 years of age; in the absence of a maintenance programme, this figure would rise to 40% after 1 year.

 

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