Canh DG, Whittington D, Thoa LTK, Utomo N, Hoa NT, Poulos C, Thuy DTD, Kim D, Nyamete A, Acosta C. Household demand for typhoid fever vaccines in Hue, Vietnam. Health Policy Plan. 2006 May 1;21(3):241-55.

The demand function for vaccines against typhoid fever was estimated using stated preference data collected from a random sample of 1065 households in Hue, Vietnam, in 2002. These are the first estimates of private willingness-to-pay (WTP) and demand functions for typhoid vaccines in a developing country. Mean respondent WTP for a single typhoid fever vaccine ranged from US$2.30 to US$4.80. Mean household WTP estimates (vaccinating all members of the household) ranged from US$21 to US$27. Demand was similar for vaccines with different degrees of effectiveness and intervals of duration. These results suggest a significant potential for private sector provision of typhoid fever vaccines in Hue.

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