The UN, through the World Health Organization (WHO) and UNICEF, warns that cracks in the global immunisation system are widening and increasing the risk of outbreaks. The agencies say drastic funding cuts are reducing routine vaccination support and weakening health services that communities rely on to keep up immunisation coverage. They also point to ongoing conflicts, which disrupt supply chains, hinder access to clinics and can prevent health workers from reaching people who need vaccines. In addition, the UN highlights misinformation as a growing driver of lower vaccination uptake in some areas.
Together, these factors create larger gaps in who receives vaccines and when, the agencies say, making it easier for vaccine-preventable diseases to spread. The warning is framed as an urgent call for sustained funding and improved coordination to protect vaccination programmes and close coverage shortfalls. The report focuses on systemic weaknesses—rather than any single country—linking financial pressure, insecurity and false information to rising vulnerability across regions.
