The PGIMER’s International Vaccinology Course (PGIVAC) is a capacity building program designed to equip healthcare professionals, researchers, and policymakers with in-depth knowledge of principles of vaccinology. The course covers various aspects of vaccine development, efficacy, safety, regulatory frameworks, implementation strategies and evidence-based decisions regarding policy making at national level, with a special focus on Low- and Middle-Income Countries (LMICs). By bringing together leading global experts in the field, PGIVAC aims to enhance capacity building and foster collaboration in vaccine research and policy, ultimately contributing to improved public health outcomes.