Does HBV have window period?
Apr 8, 2002
Dear Doc, does the HBV have a window period like HIV? Also how long after infection does it take to clear the virus COMPLETELY from the system?
Response from Dr. Fried
The window period or incubation period is approximately 6 weeks to 6 months after exposure. For most adults who may acquire HBV but then clear it, the virus is gone very rapidly within a few weeks (or less). For someone who develops chronic infection, HBV is always detectabke in the blood. Blood tests can show the exact stage of infection and demonstrate clearance/ the development of protective immunity.
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