Can a Virtual Nurse Convince You to Get Vaccinated? Insights from Cutting-Edge Research at SWPS University
In an era marked by heightened vaccine skepticism and the rapid spread of misinformation, scientists at SWPS University are pioneering innovative approaches to bolster public health communication. Their novel research demonstrates that a virtual nurse avatar can effectively engage individuals in persuasive dialogue about vaccination, potentially revolutionizing how healthcare providers motivate vaccine uptake. This breakthrough comes at a critical time when traditional public health messaging must contend with both resistance and deep-rooted doubts about vaccine safety and efficacy.
Vaccination remains one of the most impactful medical interventions in history, yet its acceptance has faced growing challenges. Despite overwhelming scientific consensus on the benefits of vaccines, certain populations remain hesitant or opposed due to misinformation, conspiracy theories, or mistrust. The COVID-19 pandemic, while underscoring vaccination’s life-saving potential, also amplified an unprecedented wave of vaccine hesitancy fueled by social media misinformation. This paradoxical situation has driven researchers to seek more interactive and scalable ways to reach the public.
Central to the SWPS University project is the development of FLORA, a virtual nurse designed to simulate empathetic, engaging conversations about flu vaccination. Unlike static informational leaflets or impersonal questionnaires, FLORA employs a dynamic dialogue framework whereby users actively participate in a tailored discussion. The platform’s avatar exhibits human-like expressions and verbal cues that help replicate elements of real social interaction, enhancing the user’s sense of connection and trust. This approach leverages principles of social influence theory, which emphasizes the power of dialogue and relationship-building in changing attitudes and behaviors.
The research involved two large randomized controlled clinical trials comprising nearly 1,800 participants. Subjects were randomly assigned to one of three groups: one engaged in a virtual conversation with FLORA, the second completed a risk-assessment questionnaire regarding influenza complications, and the third read a conventional informational leaflet. The FLORA sessions incorporated personalized health assessments and risk discussions specifically designed to motivate vaccination, with some participants receiving an explicit prompt to get vaccinated.
Notably, the interactive dialogue elicited a significant decrease in perceived personal risk for post-influenza complications, particularly among individuals initially categorized as low-risk. This reduction in perceived vulnerability paradoxically corresponded with a heightened willingness to vaccinate within this group—a nuanced finding that underscores the complexity of risk perception in health decision-making. It suggests that engaging conversational contexts may recalibrate how individuals interpret health risks and benefits beyond simple informational delivery.
Perhaps more striking was the discovery that supplementing the dialogue with a direct, clear vaccination request amplified participants’ readiness to vaccinate by a factor of thirty-three compared to other groups. This result signals that while conversational engagement forms a critical foundation, integrating explicit behavioral calls-to-action can generate disproportionately larger effects. Such insights provide valuable guidance for designing future digital health interventions by combining empathetic dialogue with straightforward behavioral nudges.
The FLORA avatar’s design reflects a sophisticated understanding of communication science and human-computer interaction. By incorporating facial expressions, simulated emotions, and elements of humor, the virtual nurse bridges the empathetic gap that often poses a limitation in digital health tools. The research team emphasizes that demonstrating empathy—and not merely conveying information—is a crucial determinant of trust and persuasion in healthcare communication. These qualities confront the pervasive problem of “digital coldness” that can alienate users from technology-mediated health advice.
This research also aligns with broader shifts in healthcare that seek to alleviate the increasingly burdensome demands placed on clinicians. Medical professionals face mounting workloads that constrain their ability to engage patients extensively in vaccine-related dialogues. FLORA’s virtual assistant model offers a scalable solution that can complement healthcare delivery, potentially enriching patients’ understanding and positively influencing their vaccination decisions without additional strain on healthcare resources.
The SWPS University study contributes to the growing literature on computational social science by demonstrating how digital avatars can embody communication strategies traditionally reserved for human providers. This blend of technology and psychology exemplifies interdisciplinary innovation, harnessing artificial intelligence, behavioral science, and health communication to tackle pressing public health challenges.
Moving forward, researchers acknowledge that individual user differences, such as pre-existing attitudes towards vaccines and the perceived credibility of the virtual assistant, likely modulate the intervention’s impact. Future investigations will focus on optimizing avatar characteristics and dialogue structures to maximize effectiveness across diverse populations. Additionally, integrating such virtual dialogues into public health campaigns could create new avenues for combating vaccine misinformation on scalable platforms.
By offering a compelling example of how virtual agents can support health promotion efforts, FLORA embodies a promising frontier in digital public health. This research not only advances our understanding of social influence mechanisms in virtual environments but also opens pathways toward more accessible, interactive, and empathetic healthcare experiences in the 21st century.
Subject of Research: People
Article Title: A virtual assistant can persuade you to get vaccinated against the flu. Online dialogue as a tool of social influence in promoting vaccinations
News Publication Date: 10-Feb-2025
Web References:
https://www.sciencedirect.com/science/article/pii/S0277953625001546?via%3Dihub
http://dx.doi.org/10.1016/j.socscimed.2025.117825
References:
- Hussain, A., Ali, S., Ahmed, M., & Hussain, S. (2018). The Anti-vaccination Movement: A Regression in Modern Medicine. Cureus.
- Loomba, S., de Figueiredo, A., Piatek, S. J., de Graaf, K., & Larson, H. J. (2021). Measuring the impact of COVID-19 vaccine misinformation on vaccination intent in the UK and USA. Nature Human Behaviour, 5(3), Article 3. 01056-1.
- Kim, S. S., Kaplowitz, S., & Johnston, M. (2004). The Effects of Physician Empathy on Patient Satisfaction and Compliance. Evaluation & the Health Professions, 27, 237–251.
- Stewart, M. A. (1995). Effective physician-patient communication and health outcomes: A review. CMAJ: Canadian Medical Association Journal, 152(9), 1423–1433.
- Thom, D. H., Hall, M. A., & Pawlson, L. G. (2004). Measuring patients’ trust in physicians when assessing quality of care. Health Affairs, 23(4), 124–132.
Image Credits: SWPS University
Keywords: Psychological science, Health care, Information technology, Computational social science
