The role of viruses as causes of congenital diseases.

Adult Animals Bluetongue Cattle Cattle Diseases/epidemiology Classical Swine Fever Congenital Abnormalities/epidemiology,etiology,veterinary Cytomegalovirus DNA Viruses Diarrhea/veterinary Female Fetal Diseases/complications,etiology Gestational Age Herpesviridae Humans Infant Infant, Newborn Pregnancy Pregnancy Complications, Infectious/epidemiology Rubella virus Sheep Sheep Diseases/epidemiology Simplexvirus Swine Swine Diseases/epidemiology United States Virus Diseases/complications Viruses, Unclassified