|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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