Summary of antibody tests
| Examination | Normal | Initial study | Follow up1-150 |
|---|---|---|---|
| Serum: | |||
| B burgdorferi IgG antibodies | <1:16 | 1:64 | <1:16 |
| B burgdorferi IgM antibodies | <1:48 | 1:12 | <1:12 |
| CSF: | |||
| Total cell count (/μl) | <5 | 5 | 3 |
| CSF/serum albumin ratio (10−3) | <7.5 | 4.7 | 3.5 |
| IgG-local (%) | 0 | 75 | 65 |
| IgA-local (%) | 0 | 20 | 10 |
| B burgdorferi IgG antibodies | <1:16 | 1:16 | 1:2 |
| B burgdorferi IgM antibodies | <1:48 | <1:2 | <1:2 |
| B burgdorferi IgG antibody index | <1.5 | 24.6 | 18.0 |
| B burgdorferi IgA antibody index | <1.5 | 2.2 | 7.2 |
| 14 kDa fragment IgG antibody index | <1.5 | 35.6 | Negative |
↵1-150 Five months after treatment.