TABLE 1.
Days from onset of fever (days from tick bite) | Serum antibody titer or PCR result for:
|
|||
---|---|---|---|---|
E. chaffeensis
|
E. phagocytophila
|
|||
IgM | IgG | IgG | PCR | |
3 (12) | Negative | Negative | 1:256 | Positive |
22 (31) | Negative | 1:256 | >1:4,096 | Positive |
33 (42) | Negative | 1:256 | >1:4,096 | Negative |