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Old 03-01-2005, 11:32 PM
Loopydude Loopydude is offline
Join Date: Dec 2003
Posts: 8,299
That is my understanding as well. If I recall correctly, to be negative for HBsAg, but positive for anti-HBc (Hep B core IgM, I think) can mean a false positive, recent acute infection, or chronic carrier with unmeasurably low circulating HBsAg. They typically don't look any further, though there certainly are tests (like PCR-based viral DNA assays as well as liver function tests) that can more rigorously establish chronic disease or lack thereof.