Assays for hepatitis B surface antigen (HBsAg) are the most frequently ... Beyond 14 days, there were no reactive or grayzone HBsAg tests that could be attributed to recent HBV vaccination.
demonstrating active HBV infection. With the exception of this single patient, no reactive or grayzone results were reported in patients who were tested for HBsAg between 15 and 180 days following ...
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