More than 14 million children worldwide did not receive a single dose of any vaccine in 2024, according to new national immunisation coverage data released on Tuesday by the UN agencies World Health Organization (WHO) and UNICEF.

The report showed that nearly 20 million infants missed at least one dose of diphtheria, tetanus, and pertussis (DTP)-containing vaccine last year, threatening to unwind decades of progress.

More than 30 million children also remained under-protected against measles, leading to more large or disruptive outbreaks.