%0 Journal Article %T Countering vaccine misinformation: Designing a learning resource for healthcare workers in eight countries. %A Miller E %A Michel A %A Singh P %A Limaye R %J Vaccine %V 0 %N 0 %D 2024 Jul 11 %M 38997850 %F 4.169 %R 10.1016/j.vaccine.2024.06.058 %X In response to the pervasive challenges posed by online health misinformation, our objective was to develop a training program aimed at enhancing the skills and confidence of healthcare workers in recognizing and effectively responding to misinformation, with a particular focus on vaccinations. This article discusses the design of a training program aimed at equipping healthcare workers with the skills to combat health misinformation, offering theoretical foundations for integrating evidence-based strategies into problem-based learning to help learners retain and apply information, and also shares examples and insights gained from its application across diverse learner groups. The training curriculum integrates evidence-based misinformation intervention strategies, learner engagement strategies and draws from authentic scenarios across diverse cultural contexts. The trainings were administered from January through July 2023 to 287 participants across eight countries (Cameroon, Guyana, India, Kenya, Mozambique, Nigeria, Philippines, and the United States) in English, French, Spanish, and Portuguese. Throughout the implementation of the training, a key emphasis was placed on a learner-driven approach that fostered real-world application. Participants engaged in role-playing exercises and problem-solving sessions, enabling them to practice their newfound skills in a controlled setting. Our findings contribute to the literature of participatory, problem-based learning for healthcare professionals and vaccine communication and misinformation response, and can serve as a resource for practitioners implementing similar trainings.