International Journal of Neonatal Screening (ISSN 2409-515X) is an international peer-reviewed open access journal on neonatal screening and neonatal medicine. It is the official journal of the International Society for Neonatal Screening (ISNS) published quarterly online by MDPI. IJNS is also the official journal of the German Society for Neonatal Screening (DGNS), the Japanese Society for Neonatal Screening (JSNS) and the Association of Public Health Laboratories (APHL)–Newborn Screening & Genetics Program which are affiliated societies and program to the journal.