India's recent health surveys have highlighted a worrying trend of incomplete child immunization rates across several district clusters in India. Conventional training methods for community healthcare workers (CHWs) in India are inadequate for improving their skills and knowledge. Smartphone games could be a viable and cost-effective method of refresher training specifically targeting immunization practices. A refresher training game was designed both as a physical card-based and digital app-based game, focusing on enhancing CHWs' knowledge and practices related to child immunization. A quasi-experimental study was conducted with 368 participants. Quantitative gameplay analytics and qualitative feedback from players were collected through interviews. The findings show that game-based refresher training significantly improves CHWs' knowledge gain and retention in the area of child immunization. The discussion highlights the study's implications and insights while developing effective digital tools for training CHWs. The research contributes to the growing body of work on digital tools for training CHWs in resource-constrained settings. The study underscores the potential of smartphone games as a scalable and effective method of refresher training for improving child immunization rates.

翻译：印度最近的健康调查突显了一个令人担忧的趋势：多个地区集群的儿童免疫接种率未达完整水平。印度社区卫生工作者（CHWs）的传统培训方法在提升其技能和知识方面效果不足。智能手机游戏可成为针对免疫实践培训的一种可行且成本效益高的复训方式。我们设计了一款实体卡牌与数字应用程序相结合的复训游戏，重点强化社区健康工作者在儿童免疫方面的知识与实践。一项准实验研究纳入了368名参与者，通过访谈收集了定量游戏分析数据与玩家的定性反馈。结果表明，基于游戏的复训显著提升了社区健康工作者在儿童免疫领域的知识掌握与保留能力。讨论部分强调了该研究对开发有效数字工具培训社区健康工作者的启示与见解。本研究为资源受限环境中利用数字工具培训社区健康工作者的学术体系贡献了实证依据，并证明了智能手机游戏作为可扩展且高效复训方法在提升儿童免疫接种率方面的潜力。