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PCR, Serology and immunohistochemistry on blood, serum and tick bite biopsies, collected from lambs, naturally infected with A. phagocytophilum
| Serum titre | ≤ 40 | 40 - 1280 | 2560 - 5120 | Sum | |
|---|---|---|---|---|---|
| PCR positive blood sample |
IHC positive | 0 | 20 | 5 | 25 |
| IHC negative | 1 | 21 | 17 | 39 | |
| PCR negative blood sample |
IHC positive | 0 | 0 | 0 | 0 |
| IHC negative | 2 | 6 | 0 | 8 | |
| Sum | 3 | 47 | 22 | 72 | |
