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

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.

KEYWORDS:

• Acceptability
• Willingness to pay
• HIV
• vaccine
• contingent valuation
• Brazil

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Declaration of interest

The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.

Author contributions

V Gonçalves Nogueira and IPD Godói conducted the study and V Gonçalves Nogueira, EA Reis and IPD Godói conducted the analysis, with B Godman and AP Martin contributing to the literature review. All authors revised the final version submitted to the journal. All authors also agree to be accountable for all aspects of the work.

Data Availability Statement

The data presented in this study are available on request from the corresponding author. The data are not publicly available due to privacy and ethical restrictions.

Reviewer disclosures

Peer reviewers on this manuscript have no relevant financial or other relationships to disclose.

Additional information

Funding

This work was not funded