title: Epidemiological evidence is crucial as proof of causation in cytomegalovirus disease.
abstract: This review analyses the methods available to establish proof of causation in cytomegalovirus (CMV) disease. The clinical spectrum of CMV disease is discussed in the light of the crucial role of longitudinal epidemiological studies in proving causation in such disease.
authors.affiliation: Department of Pathological Sciences, Medical School, Manchester, U.K.
authors.forename: D J
authors.initials: DJ
authors.lastname: Morris
mesh_terms: D000818:Animals; D003586:Cytomegalovirus Infections / Q000453:epidemiology* / Q000209:etiology; D004812:Epidemiologic Methods; D006801:Humans