The Seroprevalence of Listeria monocytogenes in Sport Horses Bred in Ankara Province

The aim of this study was to determine the seroprevalence of Listeria monocytogenes in horses bred for sport in the province of Ankara. Sera collected from 100 clinically healthy horses were tested for the presence of L. monocytogenes antibodies using the Osebold absorption test. Agglutination titers ≥ 1:100 were accepted as positive results and a seropositivity rate was determined. Of the 100 serum samples, 62 were seropositive for L. monocytogenes antibodies detected at dilutions of 1:100 (n = 29, 46.7%), 1:200 (n = 31, 50%), and 1:400 (n = 2, 3.2%).