In 2000, the UN envisioned a path of global action to eradicate inequalities and fight the many dimensions of poverty with the Millennium Development Goals (MDGs), which have served as an overarching framework for health, social, and economic development.1 During the MDG era, the global under-5 child mortality rate declined by an impressive 53%,2 but still fell short of the targeted two-thirds reduction from 1990 to 2015.3 Progress in improving child survival has been uneven and inequalities persist across both developing and high-income countries.