| Disease | Diagnostic tests | ||
|---|---|---|---|
| P. | Tuberculosis | (i) | Lepromin test |
| Q. | AIDS | (ii) | ELISA |
| R. | Syphilis | (iii) | Mantoux test |
| S. | Leprosy | (iv) | Kahn's test |
| Antibody | Description |
|---|---|
| P. IgE | (i) Cross the placenta |
| Q. IgG | (ii) Dominant antibody produced in immune responses |
| R. IgM | (iii) It is found in the mother's milk |
| S. IgA | (iv) Responsible for autoimmune responses including allergies |