npj Vaccines, Published online: 14 August 2026; doi:10.1038/s41541-026-01541-6 The Asia-UK maternal-neonatal infection and iMMunity Network (AMMuNet) convened its first international symposium in Kathmandu, November 2025, to address global and regional burden of maternal-neonatal infections. Primary objective of the symposium was to share the latest research and evidence on perinatal infections and immunization, alongside a focused workshop to develop an outline for potential studies targeting priority pathogens: group B Streptococcus, respiratory syncytial virus, Bordetella pertussis, and Klebsiella pneumoniae.