Measles vaccines save millions of lives each year.
Measles used to be an extremely common disease. Just sixty years ago, over 90% of children would have been infected by it, and of those who developed symptoms, around a quarter would be hospitalized.
The US alone had around three to four million cases annually, leading to tens of thousands of hospitalizations and hundreds of deaths each year.
However, in 1963, John Enders developed the first effective measles vaccine. Vaccination efforts ramped up rapidly in richer countries, and in the 1970s and 1980s, they were scaled up worldwide.
In just the last fifty years, itâs estimated that measles vaccinations have prevented over *90 million* deaths worldwide.
Two to three million people would die from measles every year without them. This means these vaccines are likely the most life-saving ones currently in use.
ALT Heatmap of reported measles cases per 100,000 across US states from 1929 to 2022 where high incidence is visible nationwide before vaccine introduction and then falls dramatically after vaccine rollout and policy changes, illustrating that vaccines reduced measles cases. Source: Project Tycho (2018); Centers for Disease Control and Prevention (1959 to 2022). License: CC BY by Fiona Spooner / OurWorldInData.org.