| Other studies of specific antibody production |
| Isohemagglutinins (antibody to blood group antigens A and B) |
| Response to neoantigens (bacteriophage fX174 or keyhole limpet hemocyanin)* |
| IgG subclass levels |
| IgG 1, 2, 3, and 4 |
| B and T lymphocyte evaluation |
| Immunophenotyping of B cells* |
| CD19+/CD20+/sIgMD+ (immature B cell) |
| CD19+/CD20+/sIgMD+/sIgDD+ (mature B cell) |
| CD19+/CD20+/sIgMD+/sIgDD+/CD27+ (memory B cell) |
| In vitro lymphocyte responses* |
| B cell proliferation response to SAC |
| IgM production by B cells in response to SAC and BCDF |
| Suppressor activity of B cells specific for IgM |
