Kinetics of seroconversion in an SU5-total ELISA of goats experimentally infected with SRLV. (A) Results of goat 9614 infected with strain 1355. Sera were tested at different time points (black squares) in a 1355-SU5-total ELISA. Goat 9605 (open diamonds) did not seroconvert and served as a negative control. (B and C) Results of goats 01, 03, and 04 (B) and 10, 11, and 13 (C), respectively. Sera were tested at different time points in a CO-SU5-total ELISA. OD at 405 nm was measured at 30 min after addition of the chromophore. The cutoff (dotted line) was set at an OD of 0.3.