Abstract
A cluster sample survey was conducted in January 1989 in 3 provinces of Burkina Faso to evaluate an immunization programme (based on two contacts, providing inactivated poliomyelitis vaccine plus DPT) that had been launched in 1982-84. The objectives were to estimate neonatal tetanus (NNT) mortality and poliomyelitis prevalence in the study area. The target population (using the same sample of households comprised 2107 live infants born during the preceding year for the NNT survey, and 17,154 children aged 0-9 years for the poliomyelitis survey. The NNT mortality rate was 3.3 per 1000 live births, and the poliomyelitis prevalence rate was 2.8 per 1000 children aged 5-9 years. Dates of onset of poliomyelitis cases among children aged 0-9 years and the numbers of children at risk during the 10-year recall period, reconstituted with demographic indicators taken from standardized life-tables, were used to calculate the incidence rates of poliomyelitis. These rates could be compared in the 5-year period preceding the survey, and showed a decreasing trend consistent with routine surveillance data.
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Selected References
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