Abstract
The prevalence of antibodies to Ehrlichia equi in horses from the foothill regions of northern California and from the Sacramento valley (non-foothill area) was determined, using an indirect fluorescent antibody test. Horses from foothill regions had a higher prevalence of seropositivity (10.4%) and higher titer (1:10 to 1:80) than did those from non-foothill regions (3.1%; titer less than or equal to 1:10). Fifty percent of healthy horses on a foothill farm enzootic for E equi had titer to E equi, suggesting that infection with E equi can be subclinical. Six veterinarians surveyed from northern California diagnosed clinical E equi infection in 38 horses during 1985-1986 based on clinical signs of infection and observation of E equi inclusion bodies in neutrophils on blood smears.
Original language | English (US) |
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Pages (from-to) | 1962-1964 |
Number of pages | 3 |
Journal | Journal of the American Veterinary Medical Association |
Volume | 196 |
Issue number | 12 |
State | Published - Jun 15 1990 |
ASJC Scopus subject areas
- veterinary(all)