?:definition
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Molecular assay reagents intended to identify hepatitis B virus, a DNA virus of the genus Hepadnavirus, family Hepadnaviridae, by detecting the nucleic acid of the target virus. Hepatitis B virus may cause hepatitis, a disease characterized by jaundice and the increase of some enzymes in serum (e.g., aspartate aminotransferase); these viruses may be transmitted percutaneously (e.g., via body piercing, tattooing), parenterally, from mother to child at birth, or by intimate (e.g., sexual) contact.
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