The lyme disease : results of a serological study in sheep, cows and dogs in Bulgaria

Blood samples obtained from 499 cows, 512 sheep, and 106 dogs, coming from villages with Lyme disease in humans, were studied for IgG against Borrelia burgdorferi by IIFA. Antibodies to B. burgdorferi were detected in 56.25 % from the sheep, in 54.31 % from the cows, and in 22.64 % from the dogs studied. Data obtained with the cows not treated against ectoparasites at 54.3% were similar to the results with the sheep treated only once per year at 56.25%. Difference of 13.6 % & 22. 6% was observed when we compared the dogs regularly treated against ectoparasites (20.8 %) to the dogs that had not been not treated.