Inactivated hepatitis A(HA) vaccine was prepared by culturing the strain TZ84 of HA virus in 2BS cells, and the immunogencity of it was studied in common marmosets and Macaca mulattas.

Hepatitis a antibody (anti HA) - Main laboratory test used to detect hepatitis A. Detects antibody produced by patient's immune system in response to hepatitis a virus.

Using the antigen and standard serum prepared by the isolated virus, HA and HI tests were established.