Acceptability and willingness to pay for a hypothetical HIV vaccine in Brazil and the implications : a cross-sectional study

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Nogueira, Vinícius Gonçalves and Reis, Edna Afonso and Godman, Brian and Martin, Antony Paul and Godói, Isabella Piassi Dias (2024) Acceptability and willingness to pay for a hypothetical HIV vaccine in Brazil and the implications : a cross-sectional study. Expert Review of Pharmacoeconomics and Outcomes Research. pp. 1-10. ISSN 1473-7167 (https://doi.org/10.1080/14737167.2024.2384543)

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Abstract

Introduction The Human Immunodeficiency Virus (HIV) is one of the greatest public health challenges still facing communities worldwide, and until this moment, no vaccine is available for its prevention. In Brazil, the Rio de Janeiro State has stood out regarding the prevalence of this disease. As a result, an important state to consider the Willingness to Pay (WTP) for a hypothetical HIV vaccine to help with future pricing. Methods A cross-sectional study was conducted to assess the acceptability and WTP of individuals from Rio de Janeiro State for a hypothetical HIV vaccine with a 70% efficacy. Results 600 individuals were interviewed and the acceptability for this hypothetical vaccine was 77.2%. In addition, 452 participants were eligible for the WTP analysis and would accept a WTP US$79.37 (400 BRL) for this vaccine, a higher value than that found in another study (200 BRL) conducted in the Northern region of Brazil under the same methodological conditions. Conclusion Economic studies such as WTP can contribute to discussions regarding the prices and specifications for future vaccines, particularly for a HIV vaccine in countries such as Brazil with over 5,000 municipalities spread across regions with diverse characteristics and challenges in terms of socioeconomic, epidemiological and cultural differences.

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