During the 2024–2025 biennium, Argentina consolidated the strengthening of the national immunization program, achieving significant progress that directly enhanced  the sustainability of access to vaccines for all. During this period, 100% of the country’s municipalities were assessed for risk related to poliomyelitis, measles, rubella, and congenital rubella syndrome, and all municipalities were able to generate systematized data on tracer vaccines, reinforcing evidence-based decision-making.

Through the expansion of the Revolving Fund for Access to Vaccines, the Pan American Health Organization (PAHO) supported an increase in vaccine procurement from 11.2 million to 14.7 million doses, while more than doubling the contractual value from USD 28.7 million to USD 55.3 million between 2024 and 2025. This process consolidated a portfolio of 24 vaccines, including innovative immunization technologies such as monoclonal antibodies against respiratory syncytial virus, and ensured the supply of 83% of the vaccines included in the national immunization schedule, thereby reinforcing program sustainability. Strengthening procurement and planning mechanisms improved supply predictability and safeguarded the program against financial and market constraints.  

In parallel, technical cooperation focused on strengthening the programmatic and territorial management of immunization services. With the support of PAHO, the country substantially improved the quality and use of nominal vaccination data, reinforcing  microplanning strategies aimed at health for all through the training of 150 professionals. Strengthened subnational capacities, together with improvements in data recording and traceability, made it possible to identify gaps and guide targeted interventions for populations that have historically been left behind.  

In addition, PAHO supported the development of a federal vaccine safety network, strengthening surveillance and response to events supposedly attributable to vaccination or immunization, and reinforced the country’s rapid response to outbreaks, contributing to the interruption of transmission chains and reinforcing public trust.

Taken together, these results consolidate a more resilient immunization program that advances health for all, aligned with the regional Disease Elimination initiative, with direct effects on reducing preventable morbidity and mortality and on protecting population health throughout the life course. 

Caption: Activities held in Salta, Argentina, during Vaccination Week in the Americas 2025 to promote and facilitate access to immunization.

Credit: PAHO Argentina