title: Hepatitis testing update.
abstract: During a 25-year period, four types of hepatitis-causing virus have been identified and can now be evaluated serologically. This final article in this clinical laboratory medicine series reviews routes of virus transmission and persistence and the availability of tests.
authors.affiliation: Department of Pathology and Laboratory Medicine, Philadelphia College of Osteopathic Medicine, Pa.
authors.forename: N
authors.initials: N
authors.lastname: Burdash
authors.forename: J J
authors.initials: JJ
authors.lastname: Fernandes
mesh_terms: D006505:Hepatitis / Q000175:diagnosis* / Q000382:microbiology; D006518:Hepatitis Viruses / Q000302:isolation & purification; D006801:Humans; D012680:Sensitivity and Specificity