ArticlePLoS neglected tropical diseases2026
Willingness to pay for a dengue vaccine in Iran: Insights from a contingent valuation study.
Article in PLoS neglected tropical diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVaccination is crucial for controlling infectious diseases like dengue. Vaccine acceptance and willingness to pay (WTP) significantly impact vaccination programs' success but remain unexplored in Iran. This study estimates the population's WTP for a dengue vaccine (DV) and its determinants. METHODOLOGY AND PRINCIPAL
findingsThis descriptive-analytical study involved 1,031 adults aged over 18 years. WTP for the DV was estimated using the double-bounded dichotomous choice (DBDC) contingent valuation method (CVM) with an interval data approach. Model parameters were estimated via the maximum likelihood method. Data analysis was conducted using Stata version 17. Approximately 66% of participants indicated a WTP for a DV. The mean WTP was 11,129,000 Iranian Rials (IRR) (95% CI: 10,374-11,884; p < 0.001) (≈13.9 USD; 1 USD ≈ 800,000 IRR, December 2024-May 2025). Compared with reference groups, being married, having high school or university education, middle or high socioeconomic status, and moderate or high perceived dengue risk were associated with higher WTP, while participants aged ≥61 years had lower WTP.
conclusionsHigher risk perception, greater socioeconomic status, higher level of educational, and older age were identified as significant determinants of WTP for the DV. Subsidizing the vaccine for lower-income groups and raising awareness about dengue infection risk, particularly among individuals with lower educational levels, may enhance vaccine uptake and contribute to more effective dengue prevention efforts in Iran.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.