Global childhood immunization coverage stalled in 2023, leaving 2.7 million additional children un- and under-vaccinated compared to pre-pandemic levels in 2019, according to data published today by the World Health Organization (WHO) and UNICEF.

The latest WHO and UNICEF estimates of national immunization coverage (WUENIC) – which provide the world’s largest and most comprehensive dataset on immunization trends for vaccinations against 14 diseases – underscore the need for ongoing catch-up, recovery and system-strengthening efforts.

“The latest trends demonstrate that many countries continue to miss far too many children,” said UNICEF Executive Director Catherine Russell. “Closing the immunization gap requires a global effort, with governments, partners, and local leaders investing in primary healthcare and community workers to ensure every child gets vaccinated, and that overall healthcare is strengthened.”

According to the findings, the number of children who received three doses of the vaccine against diphtheria, tetanus and pertussis (DTP) in 2023 – a key marker for global immunization coverage – stalled at 84% (108 million). However, the number of children who did not receive a single dose of the vaccine increased from 13.9 million in 2022 to 14.5 million in 2023.