TABLE 1.
Serum anti-Ehrlichia IgG titers in E. muris-primed mice, untreated or treated with doxycycline, before and after challenge with a lethal dose of IOEa
| Mouse group | IFA titer on day 36 after primary E. muris infection |
|---|---|
| Naive uninfected mice | NA |
| E. muris-doxycycline | 1:256 to 1:512 |
| E. muris | 1:1,024 |
| Mouse group | IFA titer on day 7 after IOE challenge |
|---|---|
| IOE | ND |
| E. muris-doxycycline/IOE | 1:512 to 1:1,024 |
| E. muris/IOE | 1:2,048 to 1:4,096 |
a
Serum anti-Ehrlichia IgG antibody titers were determined by using an IFA. NA, not applicable; ND, not detected.