Figure 4.

SNAP 4Dx OD values for E. canis remain elevated through day 420 of the study. Comparison of mean OD values for dogs infected only with E. canis (Group E), infected with A. platys and challenged with E. canis or infected with E. canis and challenged with A. platys (Groups A→E and E→A) at day 112, and dogs co-infected with A. platys and E. canis (Group A+E). Three of six dogs in each group were treated with doxycycline beginning at day 211 (+doxy) while the other three dogs per group served as untreated controls (not shown). (Mean OD per group.)