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Seroprevalence of Borrelia burgdorferi sensu lato and Anaplasma phagocytophilum in dogs with neurological signs
  1. K. H. Jäderlund, DVM, DECVN1,
  2. A. Egenvall, DVM, PhD1,
  3. K. Bergström, DVM2 and
  4. Å. Hedhammar, DVM, PhD1
  1. 1 Department of Clinical Sciences, Swedish University of Agricultural Sciences, SE-750 07 Uppsala, Sweden
  2. 2 Department of Bacteriology, National Veterinary Institute, SE-751 89 Uppsala, Sweden

Abstract

A retrospective cohort study was carried out to evaluate whether seropositivity for the tick-transmitted bacterial species Borrelia burgdorferi sensu lato and/or Anaplasma phagocytophilum was associated with one or more specific categories of nervous system disorders in dogs. A total of 248 dogs with nervous system disorders were serotested for these agents and categorised into six main diagnostic categories: degenerative diseases of the spine, epilepsy, inflammatory diseases, neoplasia, peripheral neuropathies, and other diseases. Multivariable analysis using logistic regression was used to model whether a dog was diagnosed as being in any of these categories. The independent variables included were sex, age, year of serological testing, and whether the animal tested positive for B burgdorferi sensu lato and/or A phagocytophilum. In one model, a statistically significant association was found between a positive titre for A phagocytophilum and the risk of a dog developing neoplastic disease. Although statistically significant, it was concluded that the association was not of clinical relevance.

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