Progress Toward Regional Measles Elimination — Worldwide, 2000–2021

Measles surveillance continues to be suboptimal, and large and disruptive outbreaks were reported in 22 countries. Reaching all children with 2 doses of MCV and strengthening measles surveillance are critical to closing immunity gaps, preventing outbreaks, and recovering progress lost during the pandemic.

This report describes both setbacks and progress made toward measles elimination during 2000–2021.