engleski

Serologic survey for leptospirae in European brown bears (Ursus arctos) in Croatia

From 1981 to 1991, sera of 42 European brown bears (Ursus arctos) from three areas in Croatia were tested for antibodies against 12 Leptospira interrogans serovars: grippotyphosa, sejroe, australis, pomona, canicola, icterohaemorrhagiae, tarassovi, saxkoebing, ballum, bataviae, poi and hardjo. Diagnostic levels of antibody were found in 17 of 42 (40%) sera. Evidence of exposure to at least one of the serovars was found in: (1) seven of 14 (50%) free-ranging bears from the Lika region, (2) four of 12 (33%) free-ranging bears from the Gorski kotar region, (3) zero of six (0%) orphaned cubs from the Gorski kotar region, and (4) six of 10 (60%) captive bears from the Zagreb Zoo. Evaluation of the magnitude of antibody titers implicated the following serovars: (1) australis in five bears, (2) sejroe in two bears, (3) canicola in one bear, and (4) icterohemorrhagiae in one bear. There was a strong correlation between serovars implicated by this survey and serovars previously isolated from small mammals in Croatia.

European brown bear ; Ursus arctos ; leptospirosis ; Leptospira interrogans ; serovars ; serology ; survey ; Croatia

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