Global childhood vaccination rates improved slightly in 2025 with 90% DTP coverage despite 13.5 million unvaccinated children

Global childhood vaccination rates improved slightly in 2025, with 90% of infants receiving at least one dose of the DTP vaccine. Despite this progress, 13.5 million children remain completely unvaccinated, as conflict and funding cuts threaten to reverse these fragile gains and trigger future health risks.

2025 Immunization Progress and the Zero-Dose Gap

New estimates from the World Health Organization and UNICEF show a marginal increase in global immunization coverage for 2025. Approximately 116 million infants received at least one dose of the diphtheria, tetanus, and whooping cough (DTP) vaccine, representing 90% of the global infant population. Of these, 85% successfully completed the full three-dose series, according to data released by the agencies this week.

While the number of “zero-dose” children—those who have received no routine vaccines—dropped from 14.2 million in 2024 to 13.5 million in 2025, the pace of improvement remains insufficient. International health authorities have set a goal to halve the 2019 total of unvaccinated children by 2030; current figures are still nearly 4 million higher than the trajectory required to meet that target.

Conflict Zones and Systemic Fragility

The burden of being unvaccinated is not distributed evenly across the globe. UNICEF’s global immunization chief, Ephrem Lemango, noted that more than half of all unvaccinated children reside in countries currently experiencing conflict, including Sudan, Syria, Yemen, and Palestine. These regions represent only about one-third of global births, highlighting a severe disparity in health access.

Measles Outbreaks in 2025 with Dr. Adam Ratner and Dr. Ephrem T. Lemango | The CommonHealth Live!

Ephrem Lemango, UNICEF global immunization chief

Lemango cautioned that these hard-won gains can be eroded very easily if the current geopolitical instability continues to disrupt basic medical infrastructure.

Funding Shortfalls and the 2026 Outlook

Beyond the immediate impact of war, public health officials are bracing for the long-term effects of global funding cuts that began early in 2025. While these financial constraints have not yet fully manifested in the 2025 vaccination data, experts warn that the window to prevent a significant downturn is closing.

Kate O’Brien, WHO director of the Department of Immunization, Vaccines and Biologicals

According to Kate O’Brien, the system is already showing signs of strain. The World Health Organization is currently tracking an increase in outbreaks of measles, diphtheria, and cholera—diseases that are largely preventable through established vaccination protocols.

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