The latest meeting of the UK-IS Journal Club took place on 26th April 2022. Hosted by UK-IS Trustee and Interim Chair Dr Tom Jefford, the group reviewed Spreading and scaling up innovation and improvement Trish Greenhalgh and Chrysanthi Papoutsi BMJ 2019;365:l2068 Key Messages Spread (replicating an intervention) and scale-up (building infrastructure to support full scale implementation) are difficult Implementation science takes a structured and phased approach to developi