Nigeria, July 15 -- The World Health Organisation (WHO) and the United Nations Children's Fund (UNICEF) have warned that funding shortfalls could reverse recent gains in routine immunisation across lower-income countries despite record vaccination coverage achieved in 2025.

The warning is contained in the latest WHO and UNICEF Estimates of National Immunisation Coverage (WUENIC), analysed by Gavi, the Vaccine Alliance.

According to the report, lower-income countries immunised a record 73 million children with Gavi-supported vaccines in 2025, the highest number ever recorded.

It said three-fourths of all countries maintained or improved coverage with the third dose of the diphtheria, tetanus and pertussis (DTP3) vaccine in 2025, the hig...