Mae'r Cyd-bwyllgor ar Imiwneiddio a Brechu (JCVI) yn bwyllgor cynghori arbenigol annibynnol, sy'n cynghori adrannau iechyd y Deyrnas Unedig am imiwneiddio, gan wneud argymhellion am amserlenni brechu a diogelwch brechlynnau.
The Joint Committee on Vaccination and Immunisation (JCVI) is anindependent expert advisory committee, which advises United Kingdom health departments aboutimmunisation, making recommendations aboutvaccination schedulesandvaccinesafety.