​During the World Immunization Week, and after the launch of UNICEF's 2023 State of the World's Children report, we will learn about the key elements of UNICEF's lifesaving immunization and polio eradication work. We will understand why vaccination rates have dropped, meet UNICEF’s innovative distribution and logistics, and follow examples of how we connect with the hardest to reach communities in some of the world’s toughest places in Africa, Asia and the Americas.