Published in Scientific Works. Series C. Veterinary Medicine, Vol. LXXI, Issue 1 
Written by Anca BULGARU, Elena NEGRU, Mihai Danes, Doina Danes
Leptospirosis, a zoonotic disease with a worldwide distribution, can affect horses causing reproductive disorders such as abortion, embryonic absorption and stillbirths. The aim of the current study was to determine the prevalence of Leptospira antibodies in mares and stallions belonging to a breeding farm in the southern region of Romania. Blood samples were collected from 91 horses and were analysed by the microscopic agglutination test (MAT) using 12 distinct live antigens. To determine if acute infection was present, the positive individuals were retested after 14 days. The results showed that Leptospira antibody prevalence was high, with 59.34% of samples testing positive. Of the 91 samples included in the study, 40 tested positive for one serotype, 11 samples for 2 serotypes, 2 samples for 3 serotypes and 1 sample reacted positive with 5 serotypes.
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