Table 3.

rMAP2 ELISA results using sera from dogs infected with related organisms

No. of samplesrMAP2 ELISA titeraOrganism / IFA titer
5Negativeb Babesia canis / 40
2Negative Babesia canis / 80
4Negative Babesia canis / 160
3Negative Babesia canis / 320
1Negative Ehrlichia risticii / 160
6Negative Ehrlichia platys / 40
1Negative Ehrlichia platys / 80
2Negative Ehrlichia ewingiic / NA e
1Negative Rickettsia rickettsii / 64
1Negative Rickettsia rickettsii 256
3Negative Haemobartonella canisd / NA
1Negative Bartonella vinsonii / 1,024
4Negative Bartonella vinsonii / 2,048
1Negative Bartonella vinsonii / 4,096
1Negative Neospora caninum/ 100
  • a A sample was considered positive in the rMAP2 ELISA when the absorbance reading of the test serum at a specific dilution was at least three standard deviations above the mean absorbance reading of identical dilutions of standard negative control sera.

  • b A negative ELISA result indicates a titer of <100.

  • c Sera obtained from experimentally infected animals.

  • d Sera obtained from defined clinical cases in which organisms were visualized in the peripheral blood of the patients.

  • e NA, not available.