SEROEPIDEMIOLOGY OF LEPTOSPIRA INFECTION IN STRAY DOGS BY MAT DURING A ONE-YEAR PERIOD FROM RURAL COMMUNITIES OF KOOHSAR, ALBORZ, IRAN

Background and Aim:Leptospirosis is a worldwide zoonosis disease that has been seen on all continents except the Antarctic. Reservoirs of this disease are companion animals, livestock and wildlife. Dogs are the maintenance hosts of leptospira, so they can be potential sources of infection for dogs owners. Therefore, studying the prevalence of leptospirosis in dogs reduces the disease in other dogs and humans, therfore, the aim of this study was Seroepidemiology of Leptospira infection in stray dogs by Microscopic Agglutination Test (MAT) during a one-year period from rural communities of koohsar, Alborz, Iran.Methods:The MAT test was performed on 110 serum samples from stray dogs of Koohsar area.We used twenty live antigens of leptospira.Results:The prevalence of positive MAT test in stray dogs (males and females) were 21.84% (24 cases) for different serovars. The rate of infection in male and female dogs were 20.8% and %22.58, respectively. The lowest antibody titre was observed at 1: 100 and the highest was 1:1600. The most common titers were 1:200 (50%), 1:400 (25%) and 1:100 (12.5%). The dominant serovares in stray dogs were, L.Conicola (33.33%), L.Icterohaemorrhagia (25%), L.Grippotyphosa (20.83%), L.pomona (4.1%) and L.Serjoe hardjo, L.Atumnnalis, each of which (8.33%), respectively.Conclusion:Our studies showed a relatively high prevalence of leptospirosis in stray dogs in Koohsar area of Alborz province and L.Canicola and L. Icterohaemorrhagiae were the dominant serovars in the dogs of the region.

کلیدواژه ها:

Leptospirosis ، MAT ، Dog ، Seroepidemiology ، Alborz