25/04/2026
8.3 million children have been reached with life-saving vaccines, with support from the Big Catch-Up, launched in 2023 during .
But many infants still miss out on this essential service through routine immunization every year.
Learn more🔽
Press release Largest catch-up initiative delivers over 100 million childhood vaccinations 23 April 2026 UNICEF/UNI855279/Ndomba Mbikayi EnglishFrançaisEspañol The Big Catch-Up, launched during World Immunization Week 2023, has delivered over 100 million vaccine doses to an estimated 18.3 millio...