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

Tironi, Pablo Argote; Barham, Elena; Daly, Sarah Zukerman; Gerez, Julian; Marshall, John; Pocasangre, Oscar

doi:10.1371/journal.pone.0259059

Cited by 26 publications

(27 citation statements)

References 38 publications

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“… 27 Our rate of VA in patients with RDs was similar to that reported by Lazarus et al 24 who performed a country-level analysis in 19 countries, in June 2020; authors included 699 Mexican individuals and 76.3% had VA. In January 2021, Argote-Tironi et al 30 conducted an online survey across six Latin American countries, including Mexico; only 62.5% of the participants strongly agree/agree with the statement, “If a vaccine were available to me now, I would get vaccinated” and this percentage is in accordance with a 62.3% of COVID-19 VA described in a nationally representative sample of the Mexican population. 31 …”

Section: Discussionmentioning

confidence: 92%

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Factors associated to COVID-19 vaccine acceptance in Mexican patients with rheumatic diseases: A cross-sectional and multicenter study

Guaracha-Basáñez

Álvarez-Hernández

Reyes-Cordero

et al. 2022

Human Vaccines & Immunotherapeutics

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COVID-19 vaccination is recommended in patients with rheumatic diseases (RDs) to prevent hospitalized COVID-19 and worse outcomes. However, patients’ willingness to receive a SARS-CoV-2 vaccine and the associated factors vary across populations, vaccines, and time. The objective was to identify factors associated with COVID-19 vaccine acceptance (VA) in Mexican outpatients with RDs. This multicenter study was performed between March 1 and September 30, 2021, and four national centers contributed with patients. Participants filled out a questionnaire, which included 32 items related to patients’ perception of the patient-doctor relationship, the COVID-19 vaccine component, the pandemic severity, the RD-related disability, comorbid conditions control, immunosuppressive treatment impact on the immune system, and moral/civil position of COVID-19 vaccine. Sociodemographic, disease-related, and treatment-related variables and previous influenza record vaccination were also obtained. Multiple logistic regression analyses identified factors associated with VA, which was defined based on a questionnaire validated in our population. There were 1439 patients whose data were analyzed, and the most frequent diagnoses were Rheumatoid Arthritis in 577 patients (40.1%) and Systemic Lupus Erythematosus in 427 (29.7%). Patients were primarily middle-aged women (1235 [85.8%]), with (mean±SD) 12.1 (±4.4) years of formal education. Years of education, corticosteroid use, patient perceptions about the vaccine and the pandemic severity, patient civil/moral position regarding COVID-19 vaccine, and previous influenza vaccination were associated with VA. In Mexican patients with RDs, COVID-19 VA is associated with individual social-demographic and disease-related factors, patient´s perceptions, and previous record vaccination. This information is crucial for tailoring effective vaccine messaging in Mexican patients with RDs.

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Section: Discussionmentioning

confidence: 92%

“…Overall, these results are generally consistent with those of the existing literature about vaccine uptake. 24 , 30 , 32 …”

Section: Discussionmentioning

confidence: 99%

Factors associated to COVID-19 vaccine acceptance in Mexican patients with rheumatic diseases: A cross-sectional and multicenter study

Guaracha-Basáñez

Álvarez-Hernández

Reyes-Cordero

et al. 2022

Human Vaccines & Immunotherapeutics

View full text Add to dashboard Cite

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“…As such, potential interventions that stress the safety, efficacy, and importance of COVID-19 vaccination may serve to maintain participation within a given COVID-19 vaccination programme. Evidence regarding the efficacy of such interventions is mixed; some studies have reported increased vaccine intent [ 44 , 45 , 46 , 47 , 48 , 49 ], and others not [ 50 , 51 , 52 , 53 , 54 ]. However, recent meta-analysis suggests that information regarding vaccine efficacy may be of particular relevance to those most hesitant [ 55 ].…”

Section: Discussionmentioning

confidence: 99%

Drivers of the Intention to Receive a COVID-19 Booster Vaccine: Insights from the UK and Australia

Barnes

Colagiuri

2022

Vaccines

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As the global pandemic perpetuates, keeping the population vaccinated will be imperative to maintain societal protection from the SARS-CoV-2 (COVID-19) virus. However, while empirical evidence regarding predictors of the intention to receive a first COVID-19 vaccine has amassed, our understanding regarding the psychological and behavioral drivers of continued COVID-19 vaccination remains limited. In this pre-registered study (UK: AsPredicted#78370|Australia: AsPredicted#81667), factors predicting the intention to receive a COVID-19 booster vaccine were investigated in two adult samples from the UK (N = 1222) and Australia (N = 1197) that were nationally representative on factors of age, gender, and geographic location. High levels of booster intent were found (73% and 67%, respectively). Exploratory Structural Equation Modelling (ESEM) revealed three key predictors of the intention to receive a booster vaccine that emerged across both UK and Australian samples: concern regarding the COVID-19 virus, positive perceptions of the COVID-19 vaccines, and the perceived severity of side effects experienced to the last COVID-19 vaccine dose. Several additional factors (age, months since the last COVID-19 vaccine, familiarity with side effects, and regularly receiving the influenza vaccine) were present in the Australian dataset. These findings provide important evidence that targeting psychological perceptions of the COVID-19 vaccine and virus may serve to maintain participation in the COVID-19 vaccination programme, paving the way for future behavioural research in this area.

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“…Research on hesitancy towards COVID-19 vaccines shed further light on the connection of the three broader categories researched in vaccination hesitancy in general. First, sociodemographic characteristics such as age, gender, affluency, and education were associated with vaccination hesitancy in many different contexts [ 16 – 24 ]. Second, cultural, political, and institutional differences such as lower trust in authorities and support of populist views were also found to correlate with higher COVID-19 hesitancy [ 18 , 24 – 27 ].…”

Section: Introductionmentioning

confidence: 99%

“…While empirical evidence suggests that exposure to vaccination myths increases vaccination hesitancy [ 35 – 37 ], far less is known about how to counteract the resulting hesitancy. Some studies have found that providing accurate information to debunk vaccination myths increase vaccination intentions [ 16 , 21 , 35 , 38 ], while others have found no effect [ 25 , 39 ]. The impact of emphasizing benefits remains similarly contested, with some studies finding evidence that highlighting benefits increases intentions [ 38 , 40 , 41 ] while others do not [ 39 , 42 – 45 ].…”

Section: Introductionmentioning

confidence: 99%

Repeated information of benefits reduces COVID-19 vaccination hesitancy: Experimental evidence from Germany

Burger

Mayer²,

Steimanis³

2022

PLoS ONE

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Background Many countries, such as Germany, struggle to vaccinate enough people against COVID-19 despite the availability of safe and efficient vaccines. With new variants emerging and the need for booster vaccinations, overcoming vaccination hesitancy gains importance. The research to date has revealed some promising, albeit contentious, interventions to increase vaccination intention. However, these have yet to be tested for their effectiveness in increasing vaccination rates. Methods & results We conducted a preregistered survey experiment with N = 1,324 participants in Germany in May/June 2021. This was followed by a series of emails reminding participants to get vaccinated in August and concluded with a follow-up survey in September. We experimentally assess whether debunking vaccination myths, highlighting the benefits of being vaccinated, or sending vaccination reminders decreases hesitancy. In the survey experiment, we find no increase in the intention to vaccinate regardless of the information provided. However, communicating vaccination benefits over several weeks reduced the likelihood of not being vaccinated by 9 percentage points, which translates into a 27% reduction compared to the control group. Debunking vaccination myths and reminders alone also decreased the likelihood, yet not significantly. Discussion Our findings suggest that if soft governmental interventions such as information campaigns are employed, highlighting benefits should be given preference over debunking vaccination myths. Furthermore, it seems that repeated messages affect vaccination action while one-time messages might be insufficient, even for increasing vaccination intentions. Our study highlights the importance of testing interventions outside of survey experiments that are limited to measuring vaccination intentions—not actions—and immediate changes in attitudes and intentions—not long-term changes.

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

Cited by 26 publications

References 38 publications

Factors associated to COVID-19 vaccine acceptance in Mexican patients with rheumatic diseases: A cross-sectional and multicenter study

Factors associated to COVID-19 vaccine acceptance in Mexican patients with rheumatic diseases: A cross-sectional and multicenter study

Drivers of the Intention to Receive a COVID-19 Booster Vaccine: Insights from the UK and Australia

Repeated information of benefits reduces COVID-19 vaccination hesitancy: Experimental evidence from Germany

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