Private demand for cholera vaccines in rural Matlab, Bangladesh
Private demand for cholera vaccines in rural Matlab, Bangladesh
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DOI：
10.1016/j.healthpol.2007.07.009
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发表时间：
2008-02-01
期刊：
影响因子：
3.3
通讯作者：
Whittington, Dale
中科院分区：
文献类型：
--
作者：
Islam, Ziaul;Maskery, Brian;Whittington, Dale
目的：评估参加1985年口服霍乱疫苗试验的孟加拉农村地区家庭购买霍乱疫苗的意愿。所有受访者(N=591)都收到了一种霍乱疫苗的说明，该疫苗在3年内有效50%，副作用可忽略不计。受访者被问及他们会以随机预先分配的价格为家庭购买多少疫苗。采用负二项回归模型估计疫苗需求量，计算平均WT值。结果：调查对象平均愿意支付9.50美元为其家庭所有成员购买疫苗(即每支疫苗1.70美元)。幼儿(1-4岁)的人均WTP为2.40美元，学龄儿童为1.20美元，成人为1.05美元。WTP估计的中位数要小得多：幼儿1.00美元，学龄儿童0.05美元，成人0美元。结论：MatLab对霍乱疫苗的需求很大，价格低廉。最近的群体保护研究表明，未接种疫苗的人也会因疫苗价格适中、覆盖率低而间接产生影响，从而减少发病率。(C)2007爱思唯尔爱尔兰有限公司。保留所有权利。
Objectives: To estimate household willingness to pay (WTP) for cholera vaccines in a rural area of Bangladesh, which had participated in a 1985 oral cholera vaccine trial.Methods: A contingent valuation study was undertaken in Matlab, Bangladesh in summer 2005. All respondents (N=591) received a description of a cholera vaccine that was 50% effective for 3 years and had negligible side effects. Respondents were asked how many vaccines they would purchase for their household at randomly pre-assigned prices. Negative binomial regression models were used to estimate the number of vaccines demanded and to calculate average WTP.Results: On average, respondents were willing to pay about US$ 9.50 to purchase vaccines for all members of their household (i.e. US$ 1.70 per vaccine). Average WTP per person is US$ 2.40 for young children (1-4 years), US$ 1.20 for school-age children, and US$ 1.05 for adults. Median WTP estimates are significantly smaller: US$ 1.00 for young children, US$ 0.05 for schoolchildren, and US$ 0 for adults.Conclusions: There is significant demand for cholera vaccines in Matlab at low prices. Recent herd protection research suggests that unvaccinated persons would also experience reduced incidence via indirect effects at low coverage rates associated with moderate vaccine prices. (c) 2007 Elsevier Ireland Ltd. All rights reserved.