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. 2002 Mar;70(3):1342–1351. doi: 10.1128/IAI.70.3.1342-1351.2002

FIG. 3.

FIG. 3.

Infection-induced anti-VSG (A and B) and anti-trypanosome (C and D) responses. Specific IgM (A) and IgG2a and -2b (B) isotype serum endpoint titers were determined in a VSG solid-phase ELISA system (0.2 μg/well), using sera collected on days 7, 14, and 28 and just prior to the lethal end of the infection. The same sera were used to determine specific IgM (C) and IgG2a and -2b (D) isotype serum endpoint titers in an ELISA system that used total soluble trypanosome extracts as a solid-phase coating (0.5 μg/well).