Fig. 3From: A novel modified-indirect ELISA based on spherical body protein 4 for detecting antibody during acute and long-term infections with diverse Babesia bovis strainsLong-term monitoring of B. bovis antibody responses by the SBP4-based MI-ELISA and the RAP-1-based cELISA in calves challenged with a high dose of the Mo7 (a. C41441) or T2Bo (b. C41466) strain. S/N ratio indicates sample optical density to negative control OD ratio for the SBP4 MI-ELISA, and %I indicates % inhibition for the RAP-1 cELISA. Blue and red horizontal lines are 3 S/N ratio cutoff for the MI-ELISA or 21% inhibition cutoff for the RAP-1 cELISA, respectively. Abbreviations: DPI, days post-infection; OD, optical densityBack to article page