Ig responses of endemic individuals to recombinant paramyosin (BmILM6) according to their W. bancrofti parasitological status: Mf positive, CFA positive (solid histograms, n = 32); Mf negative, CFA positive (shaded histograms, n = 30); Mf negative, CFA negative (open histograms, n = 31). (a) BmILM6 IgG and isotype antibody levels (expressed as mean OD492 values). Vertical lines represent 95% confidence intervals. (b) Percentage of individuals positive in anti-BmILM6 IgG and isotypes.