All currently available genetically engineered HBV vaccines use the A2 genotype, serotype adw. A study showing occult HBV infections in US blood donors demonstrated that none of the unvaccinated ...

Test for HBV infection prior to initiation. ≥3yrs (<17kg): 150mg (pellets) once daily; (17–<35kg): 200mg (tabs or pellets) once daily; (≥35kg): 400mg (tabs or pellets) once daily.

Test for HBV infection prior to initiation ... Treatment-experienced (genotype 1): treat for 16 weeks if previously treated with an NS5A inhibitor (without prior NS3/4A protease inhibitor ...