Abstract
Despite advances in screening techniques, viral hepatitis represents a significant risk to patients who receive blood or blood products during medical treatment. Hepatitis B (HBV) is the most prevalent form of the blood-transmitted hepatitis diseases. In a patient infected with HBV, the infected host cells replicate the entire virus and also the surface protein of the virus, the hepatitis B surface antigen (HBsAg). Because the HBsAg is present in greater concentrations than the actual virus in infected blood (about 10-1000 µg/ml), it is used as the marker of choice for identifying patients with this disease.
© 1996 Optical Society of America
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