During World Immunization Week, observed from 24 to 30 April, the World Health Organization (WHO) and its partners are emphasizing the life-saving impact of vaccines across all stages of life. The campaign highlights scientific advancements that have enabled effective vaccines against diseases such as malaria, HPV, cholera, dengue, meningitis, RSV, Ebola, and mpox, underscoring the critical role immunization plays in global public health.
This year marks the midpoint of the Immunization Agenda 2030, a global initiative led by WHO aimed at ensuring universal access to life-saving vaccines. A recent progress report shows that despite major global challenges—including the COVID-19 pandemic, geopolitical instability, climate disruptions, and funding constraints—vaccination efforts over the past five years have prevented millions of deaths. However, many global targets remain off track, particularly in routine immunization coverage, equity, and outbreak prevention, revealing persistent gaps across countries.
In response, WHO is calling for renewed global commitment to strengthen national immunization programmes, improve integration with primary healthcare systems, and increase investment from international health partners. The organization stresses that sustained political and financial support is essential to close immunization gaps and protect vulnerable populations.
A major achievement highlighted during the week is “The Big Catch-Up,” a joint initiative by WHO, UNICEF, and Gavi, which has helped restore vaccination coverage for children affected by pandemic-related disruptions. Since its launch in 2023, the programme has reached an estimated 18.3 million children aged one to five across 36 countries and delivered 23 million doses of inactivated polio vaccine to unvaccinated and under-vaccinated children, contributing significantly to global polio eradication efforts.
The initiative is on track to meet its target of vaccinating at least 21 million children, reinforcing the importance of coordinated global action in restoring and strengthening immunization systems. WHO continues to emphasize that vaccines remain one of the most effective tools for saving lives, preventing disease, and ensuring healthier futures for children worldwide.
