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Type Journal Article
Scope Discipline-based scholarship
Title Which vaccine attributes foster vaccine uptake? A cross-country conjoint experiment
Organization Unit
Authors
  • Sabrina Stöckli
  • Anna Katharina Spälti
  • Joseph Phillips
  • Florian Stoeckel
  • Matthew Barnfield
  • Jack Thompson
  • Benjamin Lyons
  • Vittorio Mérola
  • Paula Szewach
  • Jason Reifler
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title PLoS ONE
Publisher Public Library of Science (PLoS)
Geographical Reach international
ISSN 1932-6203
Volume 17
Number 5
Page Range e0266003
Date 2022
Abstract Text Why do people prefer one particular COVID-19 vaccine over another? We conducted a pre-registered conjoint experiment (n = 5,432) in France, Germany, and Sweden in which respondents rated the favorability of and chose between pairs of hypothetical COVID-19 vaccines. Differences in effectiveness and the prevalence of side-effects had the largest effects on vaccine preferences. Factors with smaller effects include country of origin (respondents are less favorable to vaccines of Chinese and Russian origin), and vaccine technology (respondents exhibited a small preference for hypothetical mRNA vaccines). The general public also exhibits sensitivity to additional factors (e.g. how expensive the vaccines are). Our data show that vaccine attributes are more important for vaccine preferences among those with higher vaccine favorability and higher risk tolerance. In our conjoint design, vaccine attributes–including effectiveness and side-effect prevalence–appear to have more muted effects among the most vaccine hesitant respondents. Theprevalence of side-effects,effectiveness,country of originandvaccine technology(e.g., mRNA vaccines) determine vaccine acceptance, but they matter little among the vaccine hesitant. Vaccine hesitant people do not find a vaccine more attractive even if it has the most favorable attributes. While the communication of vaccine attributes is important, it is unlikely to convince those who are most vaccine hesitant to get vaccinated.
Free access at DOI
Digital Object Identifier 10.1371/journal.pone.0266003
Other Identification Number merlin-id:24116
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Keywords Multidisciplinary