Figure 4. Humoral responses are implicated in declining worm fitness.
Antibody responses during infection monitored by ELISA using SWAP as coating antigen. A) IgM and B) IgG. Values are mean ±SE, n = 6 animals. C) IgG levels at weeks 8 (□) and 18 (•) for individual animals plotted against the number of worms recovered at week 18.
