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Table 1 Antibodies against B. burgdorferi in Bernese Mountain dogs and control dogs at the first evaluation and after a median of 2.7 years.

From: Follow-up of Bernese Mountain dogs and other dogs with serologically diagnosed Borrelia burgdorferiinfection: What happens to seropositive animals?

  First evaluation
  Bernese Mountain dogs (N = 53) Control dogs
(N = 30)
  B. burgdorferi serology
Serology result at the second evaluation positive
(N = 22)
negative
(N = 31)
positive
(N = 11)
negative
(N = 19)
   remained negative   21 (68%)   14 (74%)
   remained positive 15 (68%)   7 (64%)  
   seroconverted*   7 (32%)   4 (36%)
   seroreverted** 10 (32%)   5 (26%)  
  1. *seroconversion: Serologic test for antibodies against B. burgdorferi was negative in the first evaluation and changed to positive in the second.
  2. **seroreversion serologic test for antibodies against B. burgdorferi was positive in the first evaluation and changed to negative in the second.