title: Protracted pneumonitis in young infants associated with perinatally acquired cytomegaloviral infection.
abstract: Two infants developed a protracted pneumonitis with lower respiratory obstruction beginning at one month of age. Lung biopsy in one suggested a viral etiology which prompted an extensive investigation of each infant for specific etiology. Virologic, serologic, immunologic, and electronmicroscopic studies indicated that cytomegalovirus was a major causative factor. The infections were apparently acquired at birth from infected maternal genital tracts and have persisted for prolonged periods of time. Evidence for gross immunologic defect as a precipitating cause was lacking. These infants serve to emphasize the possible pathologic potential of CMV when acquired in early life even in the absence of iatrogenic immunosuppression.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D003586:Cytomegalovirus Infections / Q000209:etiology / Q000276:immunology / Q000635:transmission*; D005260:Female; D005315:Fetal Diseases / Q000382:microbiology*; D006801:Humans; D007070:Immunoglobulin A / Q000378:metabolism; D007074:Immunoglobulin G / Q000378:metabolism; D007075:Immunoglobulin M / Q000378:metabolism; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology*; D011024:Pneumonia, Viral / Q000209:etiology* / Q000276:immunology; D011247:Pregnancy; D013601:T-Lymphocytes / Q000276:immunology; D002577:Uterine Cervical Diseases / Q000382:microbiology
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M