Quantity of hbsag: if you have hbv ,the
quantity of hbsag will be detected(almost the whole);
DNA: not like hbsag, the dna is may be not detected ,when you are a hbv carrier,May be you need not to care about it ,if your DNA is und without any treatment;
Quantity of hbsag: hard to decrease; ,1-2 years decrease for 1-2 log for antivirals
DNA :easy to decrease, one or more months will be undetected in blood test for antivirals
if you can change the dna to und and hbeag from pos to neg ,hbeab from