| 424 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS | 
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| 184.1 | DF | ANTIGEN, EPITOPE, OR OTHER IMMUNOSPECIFIC IMMUNOEFFECTOR (E.G., IMMUNOSPECIFIC VACCINE, IMMUNOSPECIFIC STIMULATOR OF CELL-MEDIATED IMMUNITY, IMMUNOSPECIFIC TOLEROGEN, IMMUNOSPECIFIC IMMUNOSUPPRESSOR, ETC.) {15} | 
| 204.1 | DF | .~ Virus or component thereof {13} | 
| 225.1 |  | .~.~ Hepatitis virus (e.g., infectious canine hepatitis virus, duck hepatitis virus, mouse hepatitis virus, etc.) {3} | 
| 226.1 | DF | .~.~.~> Hepatitis A virus | 
| 227.1 | DF | .~.~.~> Hepatitis B virus (e.g., hepatitis B surface antigen (HBsAg), pre-S region, hepatitis B core antigen (HBcAg), hepatitis B e-antigen, Dane particle, etc.) | 
| 228.1 | DF | .~.~.~> Non-A, non-B hepatitis virus or hepatitis C virus |