The State of the World’s Children 2023

The State of the World’s Children 2023 was developed in collaboration with VCP and using Vaccine Confidence Index data. It reveals that public perception of the importance of vaccines for children declined during the COVID-19 pandemic in 52 out of 55 countries studied.


Vaccine confidence in Mexico is very high compared to other countries. The latest data we have for Mexico is from surveys conducted in 2022 which showed that 93% of people feel that vaccines are safe and 93% think they are effective. 94% of those surveyed said they believe it’s important for children to have vaccines and 80% feel that vaccines are compatible with their religious beliefs.

IRIS Academic Research Group

The IRIS Academic Research Group was founded by some of the world’s leading researchers and academic institutions and launched in June 2021 at the inaugural Global Vaccine Confidence Summit as part of the UK government’s G7 Presidency.