One shot, Long Life! is a podcast focused on The Global Health Advocacy Incubator's (GHAI) and its partner CSOs' Immunization Budget Advocacy program, aiming to boost advocacy for domestic funding and accountability to reach zero-dose children and improve immunization coverage across many low- and middle-income countries. Through conversational interviews, it seeks to elevate thought leadership and foster knowledge exchange among policymakers, donors, and health officials to strengthen immunization efforts in low- and middle-income countries.