Over 100 million vaccine doses have been delivered to an estimated 18.3 million children aged 1 to 5 across 36 countries through the Big Catch-Up campaign since its launch in 2023.
Vaccines protect against more than 30 diseases and even some cancers, including cervical cancer. They have improved infant survival by 40% over the past 50 years and protected tens of millions of children from lifelong disabilities.
On #WorldImmunizationWeek, I call on countries to sustain and expand vaccination coverage at every age, protecting children from dying, safeguarding adolescents’ futures, and supporting longer, healthier lives for older generations.
www.who.int/news/item/24-04-2026-largest-c...