Carriers are patients with chronic but inactive infection:
- HBsAg positive for more than 6 months plus
- Persistently normal liver function (at least 3 times in 12 months) and
- No evidence of viral replication (negative HBeAg and/or HBV DNA < 2000 IU/ml)
Patients classified as inactive carriers need to be monitored once a year with CBC, renal and liver tests, HBsAg,
abdominal ultrasound. If possible, do HBV-DNA every 3 years.
They are not highly infectious but close contacts should be immunized and appropriate precautions should be followed.