evidence: These are the settings where children like Marwan, Hind and Iman have been immunized for decades. Protected from disease, they’re far more likely to have the opportunity to thrive, the chance to learn and the ability to live healthy lives. [...] The decision to vaccinate a child depends in part on trust. A parent or caregiver must have faith in the health care system, vaccine producers and government health institutions. Even before the COVID-19 pandemic, vaccine hesitancy was identified as one of the top 10 threats to global health. [...] The world is facing a red alert for children’s health: Routine vaccination coverage dropped sharply during the COVID-19 pandemic. UNICEF’s latest report, The State of the World’s Children 2023: For every child, vaccination, explores the reasons behind this red alert and the steps we as a global community must take to make sure that no child is left behind.