Result and conclusion: A survey of 2, 403 hospital staff on HBV immune status results: 928 employees (38.61%) had HBV surface antigen antibodies (Anti-HBs concentration > 10mUI / ml on Abbott's Architect i2000 machine); 1, 475 employees (61.39%) did not have antibodies (Anti-HBs concentration < 10mUI / ml); 31 employees (1.29%) were positive for HBsAg (S / CO > 1).