Israel and the United Kingdom are among the most-vaccinated countries in the world. Their success is due in part to public health campaigns designed to fight vaccine disinformation in faith and minority communities. As part of NPR's series on fighting disinformation, London correspondent Frank Langfitt visited a mosque-turned-vaccination center on the frontline of that battle. In Israel, NPR's Daniel Estrin followed the man who helped lead the public health campaign for vaccines. In participating regions, you'll also hear from local journalists about what's happening in your community.Email us at considerthis@npr.org.