The purpose of the Stop CMV Act of 2025 is to improve the early detection of congenital Cytomegalovirus (CMV) in newborns. CMV is a common virus that can lead to serious health issues in infants, including hearing loss and developmental delays. By ensuring that all newborns are screened for this virus, the legislation aims to promote better health outcomes and provide timely interventions for affected infants. The key provisions of this act require hospitals and healthcare facilities that care for infants 21 days old or younger to conduct tests for congenital CMV.