Measles in Africa

Vaccines & Immunisation
Global Health
Data & Methods
From 1.4 million measles cases in 1981 to 35,000 by 2016 — an interactive heatmap of one of the great public-health achievements.
Author

Matthew Kuch

Published

April 24, 2026

In 1981, measles infected 1.4 million people across Africa in a single year.

By 2016, that number was 35,000. A 97% drop.

What happened? The WHO/UNICEF Measles Initiative launched mass immunization campaigns starting in 2001.

Countries that used to see thousands of cases per million people (e.g. Malawi, Zambia, Niger, Kenya) saw their numbers collapse within a few years.

It’s one of the most dramatic public health achievements of the last half century. But it’s hard to appreciate something you can no longer see.

That’s why I built this interactive heatmap. 44 years, 46 countries. You can watch the red tiles fade to blue, country by country, year by year. It makes the invisible visible.

Africa measles heatmap, 1980–2024

➡️ Explore the interactive chart: https://bk-advisors.github.io/africa-measles/