TABLE 3.
Hematologic, PCR, and antibody titer results for cattle infected with E. phagocytophila
| Animala (pasture periodb) | Blood smearc | PCR resultd | Titere | Highest titer (mo) |
|---|---|---|---|---|
| Heifer (2) | + | + | 20 | 160 (August) |
| Heifer (2) | + | + | 20 | 640 (August) |
| Heifer (2) | + | + | <20 | 160 (July) |
| Heifer (2) | + | + | 20 | 80 (July) |
| Heifer (2) | + | + | <20 | 80 (July) |
| Cowf (1) | + | + | <20 | 640 (July) |
| Cowf,g (1) | + | + | <20 | 1,280 (August) |
| Heifer (2) | − | + | <20 | 640 (July) |
| Cow (2) | − | + | 20 | 160 (July) |
| Cow (2) | − | + | <20 | 80 (August) |
| Cow (>2) | − | + | 20 | 160 (July) |
| Cow (>2) | − | + | <20 | 160 (July) |
a
Blood samples were taken in June, unless indicated otherwise.
b
Number of seasons on the pasture of endemicity.
c
Detection of E. phagocytophila inclusion bodies.
d
Detection of a 928-bp amplified product.
e
Reciprocal of the serum dilution.
f
Clinical signs were observed 1 day after blood collection.
g
The sample was obtained in July.