Filter paper is an acceptable storage and transport medium for serum to be used in the detection of hepatitis B markers if temperature can be controlled. HBsAg, HBsAb and HBcAb are all stable for ...

Criteria for inclusion were age 18 to 60 years, HBsAg in the serum for at least a year, positive serum tests for anti-HBe, HBV DNA on four occasions at least three months apart in the year before ...

Recombinant DNA technology allowed the production of unlimited amounts of HBsAg of the vaccine in yeast ... (antigen variability and dependence on serum antibodies) are used as the horizontal ...