In 2023, an estimated 10.3 million measles cases were reported worldwide, marking a 20% rise compared to 2022, according to recent figures from the World Health Organization (WHO) and the U.S. Centers for Disease Control and Prevention (CDC). This alarming increase is attributed to inadequate global immunization coverage.

Measles is entirely preventable with two doses of the measles vaccine. However, more than 22 million children missed their first dose in 2023. While 83% of children globally received their initial dose, only 74% received the second, leaving significant gaps in immunity. Achieving 95% coverage of two doses in every country and community is essential to prevent outbreaks of this highly contagious virus.

“Measles vaccine has saved more lives than any other vaccine in the past 50 years,” stated Dr. Tedros Adhanom Ghebreyesus, WHO Director-General. “To save even more lives, we must invest in universal immunization.” Similarly, CDC Director Mandy Cohen emphasized, “The measles vaccine is our best defense against the virus, and increasing access must remain a priority.”

In 2023, 57 countries—spanning all regions except the Americas—experienced large-scale or disruptive measles outbreaks, a sharp increase from 36 countries in 2022. The African, Eastern Mediterranean, European, South-East Asia, and Western Pacific regions were particularly affected, with nearly half of these outbreaks occurring in Africa.

The global death toll from measles reached an estimated 107,500 in 2023, mostly affecting children under five. While this represents an 8% decline from 2022, largely due to improved nutrition and healthcare in certain regions, the numbers remain unacceptably high. Survivors of measles often face severe, long-term complications such as blindness, pneumonia, and encephalitis, with young children being most at risk.

The surge in measles cases threatens global progress toward the elimination targets outlined in the Immunization Agenda 2030. As of the end of 2023, 82 countries had achieved or maintained measles elimination, with Brazil recently reaffirmed as free of endemic measles, restoring the WHO Americas Region’s elimination status. Nevertheless, other regions, especially Africa and the Eastern Mediterranean, face ongoing challenges.

To combat this crisis, urgent and targeted efforts are needed. Governments and global partners must prioritize fully vaccinating children with two doses of the measles vaccine, particularly in conflict-affected and vulnerable areas. High-performing routine immunization programs and large-scale campaigns are critical for reaching underserved populations.

Strengthening disease surveillance, including the Global Measles Rubella Laboratory Network (GMRLN), is also vital for monitoring outbreaks and responding promptly to mitigate their impact. Effective surveillance will enhance immunization efforts and help secure a future free from measles.