congenital rubella syndrome (Monarch Disease Ontology identifier MONDO_0017361) is an infectious embryofetopathy that may present in an infant as a result of maternal infection and subsequent fetal infection with rubella virus. CRS can lead to deafness, cataract, and variety of other permanent manifestations including cardiac and neurological defects. Also known as: CRS, Rubella, Congenital, congenital rubella, fetal rubella syndrome, foetal rubella syndrome, mother-to-child transmission of rubella syndrome, rubella congenital.