Bishai David, McQuestion Michael, Chaudhry Rochika, Wigton Alyssa
The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
Health Aff (Millwood). 2006 Mar-Apr;25(2):348-56. doi: 10.1377/hlthaff.25.2.348.
We examine the relationship between country-level average costs and coverage levels for diptheria-pertussis-tetanus (DTP) vaccines. Coverage data are from the World Health Organization, and cost data are from financial sustainability plans filed with the Global Alliance for Vaccines and Immunization (GAVI) by forty countries from 2000 to 2003. In this data set, average costs are lower for countries that vaccinate more children. At the highest numbers of covered children, there was no trend toward higher average costs. Vaccine programs in this set of poor countries have not yet scaled up to the point at which diminishing marginal returns are observed.
我们研究了国家层面白喉-百日咳-破伤风（DTP）疫苗的平均成本与覆盖率之间的关系。覆盖率数据来自世界卫生组织，成本数据来自2000年至2003年四十个国家向全球疫苗免疫联盟（GAVI）提交的财务可持续性计划。在这个数据集中，为更多儿童接种疫苗的国家平均成本较低。在最高的儿童覆盖数量时，没有出现平均成本上升的趋势。这组贫困国家的疫苗计划尚未扩大到出现边际收益递减的程度。
