100M Vaccines Reach 18M Kids in Global Catch-Up Campaign

When COVID-19 shut down the world, millions of children in developing countries missed their routine vaccinations. Now, a three-year global campaign has reached a milestone that proves we can turn things around.

The Big Catch-Up campaign has delivered more than 100 million vaccinations across 36 countries since 2023. The program, led by the World Health Organization, Gavi (the Vaccine Alliance), and UNICEF, has reached at least 18.3 million children under age 5.

The most remarkable achievement? Over 12 million of these children had never received a single vaccine before. These "zero dose children" were completely unprotected from preventable diseases until this campaign found them.

The numbers show the program is on track to meet its ambitious goal of vaccinating 21 million children when final tallies come in. Kate O'Brien, WHO's director of immunization, vaccination, and biologics, highlighted this success as proof that coordinated global health efforts can work.

The pandemic created a devastating gap in childhood immunizations worldwide. Lockdowns, overwhelmed health systems, and disrupted supply chains meant routine vaccinations fell by the wayside in many developing nations. Children went unprotected against measles, polio, diphtheria, and other preventable diseases.

This campaign specifically targeted the countries and communities hit hardest by these disruptions. Health workers traveled to remote villages, set up clinics in conflict zones, and worked with local leaders to reach families who had fallen through the cracks.

The Ripple Effect

Every vaccinated child represents more than individual protection. These immunizations create community-wide shields against disease outbreaks that can devastate entire regions.

The 12.3 million zero-dose children now have protection they've never had before, preventing potential epidemics in vulnerable communities. Their vaccinations also protect siblings, parents, and neighbors too young or too sick to be vaccinated themselves.

The campaign demonstrates what's possible when global health organizations pool resources and coordinate efforts. The success in 36 countries provides a blueprint for reaching the millions of children still waiting for protection.

With the finish line in sight, this victory shows that even pandemic-scale setbacks can be reversed with commitment and collaboration.