4,050
Participants
Start Date
September 1, 2025
Primary Completion Date
March 31, 2026
Study Completion Date
March 31, 2026
Phase 1: standardized nudge messages
Participants receive uniform messages designed to encourage influenza vaccination. These messages, grounded in nudge theory, are delivered through a Chinese online platform to promote vaccination uptake.
Phase 1: personalized nudge messages + chatbot
Participants receive tailored messages designed to encourage influenza vaccination. These messages, grounded in nudge theory, are delivered through a Chinese online platform to promote vaccination uptake. Additionally, they have access to an interactive chatbot to address questions and provide decision-making support for influenza vaccination.
Phase 2: motivational Interviewing
Unvaccinated participants engage in one-on-one motivational interviewing sessions with a trained interviewer.
Centers for Disease Control and Prevention, China
OTHER_GOV