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Table 3 Comparison of serologic results using E.canis IFA and the three Ehrlichia species ELISAs

From: Seroprevalence of Ehrlichia canis, Ehrlichia chaffeensis and Ehrlichia ewingii in dogs in North America

Ehrlichia species by ELISA: E. canis IFA/Ehrlichia species ELISAs
  Pos/Neg Pos/Pos Neg/Pos Neg/Neg
E. canis 0 3 2  
E. ewingii 0 0 7  
E. chaffeensis 0 1 6  
E. ewingii + E. chaffeensis 0 1 5  
Total 0 5 20 224
  1. A total of 249 serum samples from the VBDDL at NCSU had previously been tested by E. canis IFA. Titers of 1:64 and greater were considered positive.