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Copyright of Revista Ceres is the property of Revista Ceres and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Caatinga is the property of Revista Caatinga and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Dogs infected with Dirofilaria immitis, Ehrlichia canis, or Borrelia burgdorferi may show nonspecific clinical signs or may be asymptomatic. In Brazil, E. canis and D. immitis infections are frequently diagnosed based on the presence of classical signs; however, serologic tests are seldom performed to confirm the presence of infection. To estimate the seroprevalence of these three canine diseases in Brazil, 2,553 dogs presented at veterinary practices for various tests, routine treatments, or examinations were evaluated by an in-office commercial ELISA test kit (SNAP 3Dx, IDEXX Laboratories). Each dog was examined by the veterinarian, and a whole-blood sample was collected and immediately tested for the simultaneous detection of B. burgdorferi and E. canis antibodies and D. immitis antigen. D. immitis infection was detected in 51 dogs (2.0%) and E. canis antibodies were present in 505 dogs 19.8%). Only one dog tested positive for B. burgdorferi antibodies.