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Table 2 PCR and serological testing for T. cruzi in dogs

From: High prevalence of Trypanosoma cruzi infection in shelter dogs from southern Louisiana, USA

  Confirmed seropositive (2 tests) Seronegative Total One reactive test only Seronegative Total
PCR Pos 6 79 85 41 44 85
PCR Neg 31 424 455 74 381 455
Total 37 503 540 115 425 540
Kappa   0.003 ± 0.039    0.280 ± 0.050  
  1. Abbreviations: Pos, number of positive cases; Neg, number of negative cases