Building Cognitive Resilience to Vaccine Misinformation Using AI in Europe

This multi-country trial evaluates an AI chatbot designed to counter cognitive biases and inoculate parents against vaccine misinformation, embedded within a large survey across five European countries (n=5,000). Scaled from a 2026 single-country study, outcomes compare behavioural and attitudinal responses against standard-of-care materials (e.g., UNICEF infographics) to identify effective, scalable misinformation interventions.

Inclusion Criteria: * Parents or caregivers with children under 18 years old in the five target countries (UK, Netherlands, Croatia, Latvia, and Slovakia); and * Those who have regular access to a digital device and the internet Exclusion Criteria: * Participants who do not meet the inclusion criteria.