Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.

As safe and effective vaccines become widely available, attaining herd immunity and limiting the spread of COVID-19 will depend on individuals choosing to vaccinate-and doing so quickly enough to outpace mutations. Using online surveys conducted across six Latin American countries in January 2021, w...

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Autores principales:	Pablo Argote Tironi, Elena Barham, Sarah Zuckerman Daly, Julian E Gerez, John Marshall, Oscar Pocasangre
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1649c3a0ecf542e48c5ded0597c25f61
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spelling	oai:doaj.org-article:1649c3a0ecf542e48c5ded0597c25f612021-12-02T20:13:23ZMessages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.1932-620310.1371/journal.pone.0259059https://doaj.org/article/1649c3a0ecf542e48c5ded0597c25f612021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0259059https://doaj.org/toc/1932-6203As safe and effective vaccines become widely available, attaining herd immunity and limiting the spread of COVID-19 will depend on individuals choosing to vaccinate-and doing so quickly enough to outpace mutations. Using online surveys conducted across six Latin American countries in January 2021, we experimentally assess messages designed to counteract informational deficiencies and collective action problems that may drive hesitancy. We first find that basic vaccine information persuades around 8% of hesitant individuals to become willing to vaccinate, reduces intended wait to vaccinate by 0.4 months, and increases willingness to encourage others to vaccinate. Rather than facilitating free riding, learning, or social conformity, additional information about others' behavior increases vaccine acceptance when respondents expect herd immunity will be achieved. Finally, priming the social approval benefits of vaccinating also increases vaccine acceptance. These results suggest that providing information and shaping social expectations and incentives could both significantly increase vaccine uptake.Pablo Argote TironiElena BarhamSarah Zuckerman DalyJulian E GerezJohn MarshallOscar PocasangrePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10, p e0259059 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pablo Argote Tironi Elena Barham Sarah Zuckerman Daly Julian E Gerez John Marshall Oscar Pocasangre Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.
description	As safe and effective vaccines become widely available, attaining herd immunity and limiting the spread of COVID-19 will depend on individuals choosing to vaccinate-and doing so quickly enough to outpace mutations. Using online surveys conducted across six Latin American countries in January 2021, we experimentally assess messages designed to counteract informational deficiencies and collective action problems that may drive hesitancy. We first find that basic vaccine information persuades around 8% of hesitant individuals to become willing to vaccinate, reduces intended wait to vaccinate by 0.4 months, and increases willingness to encourage others to vaccinate. Rather than facilitating free riding, learning, or social conformity, additional information about others' behavior increases vaccine acceptance when respondents expect herd immunity will be achieved. Finally, priming the social approval benefits of vaccinating also increases vaccine acceptance. These results suggest that providing information and shaping social expectations and incentives could both significantly increase vaccine uptake.
format	article
author	Pablo Argote Tironi Elena Barham Sarah Zuckerman Daly Julian E Gerez John Marshall Oscar Pocasangre
author_facet	Pablo Argote Tironi Elena Barham Sarah Zuckerman Daly Julian E Gerez John Marshall Oscar Pocasangre
author_sort	Pablo Argote Tironi
title	Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.
title_short	Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.
title_full	Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.
title_fullStr	Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.
title_full_unstemmed	Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.
title_sort	messages that increase covid-19 vaccine acceptance: evidence from online experiments in six latin american countries.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/1649c3a0ecf542e48c5ded0597c25f61
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Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries.

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