Titers of IgG and IgM Antibodies to Ap Obtained by IFA in Patients Who Had Previously Been Screened for Lyme Antibody
| Ap IgG Titer . | No. (%) of Patients (n = 369) . | Ap IgM Screen Positive No. (%) . |
|---|---|---|
| Positive (titer of ≥64) | 86 (23.30) | NA* |
| 64 | 38 (10.29) | 4/38 (10.52) |
| 128 | 18 (4.87) | 4/18 (22.22) |
| 256 | 7 (1.89) | 2/7 (28.57) |
| 512 | 7 (1.89) | 5/7 (71.42) |
| 1024 | 6 (1.62) | 5/6 (83.33) |
| 2048 | 10 (2.71) | 10/10 (100) |
| Ap IgG Titer . | No. (%) of Patients (n = 369) . | Ap IgM Screen Positive No. (%) . |
|---|---|---|
| Positive (titer of ≥64) | 86 (23.30) | NA* |
| 64 | 38 (10.29) | 4/38 (10.52) |
| 128 | 18 (4.87) | 4/18 (22.22) |
| 256 | 7 (1.89) | 2/7 (28.57) |
| 512 | 7 (1.89) | 5/7 (71.42) |
| 1024 | 6 (1.62) | 5/6 (83.33) |
| 2048 | 10 (2.71) | 10/10 (100) |
Abbreviations: AP, Anaplasma phagocytophilum; IFA, indirect fluorescent assay; Ig, immunoglobulin; NA, not applicable.
*Ap IgM screen test was only performed on those sera with positive Ap IgG screen result.
Titers of IgG and IgM Antibodies to Ap Obtained by IFA in Patients Who Had Previously Been Screened for Lyme Antibody
| Ap IgG Titer . | No. (%) of Patients (n = 369) . | Ap IgM Screen Positive No. (%) . |
|---|---|---|
| Positive (titer of ≥64) | 86 (23.30) | NA* |
| 64 | 38 (10.29) | 4/38 (10.52) |
| 128 | 18 (4.87) | 4/18 (22.22) |
| 256 | 7 (1.89) | 2/7 (28.57) |
| 512 | 7 (1.89) | 5/7 (71.42) |
| 1024 | 6 (1.62) | 5/6 (83.33) |
| 2048 | 10 (2.71) | 10/10 (100) |
| Ap IgG Titer . | No. (%) of Patients (n = 369) . | Ap IgM Screen Positive No. (%) . |
|---|---|---|
| Positive (titer of ≥64) | 86 (23.30) | NA* |
| 64 | 38 (10.29) | 4/38 (10.52) |
| 128 | 18 (4.87) | 4/18 (22.22) |
| 256 | 7 (1.89) | 2/7 (28.57) |
| 512 | 7 (1.89) | 5/7 (71.42) |
| 1024 | 6 (1.62) | 5/6 (83.33) |
| 2048 | 10 (2.71) | 10/10 (100) |
Abbreviations: AP, Anaplasma phagocytophilum; IFA, indirect fluorescent assay; Ig, immunoglobulin; NA, not applicable.
*Ap IgM screen test was only performed on those sera with positive Ap IgG screen result.
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