FIG 4.

CSA adhesion-blocking antibodies are observed in sera from Colombian pregnant women infected with submicroscopic malaria. (A) Binding inhibition profile for pregnant women infected by Plasmodium spp. (n = 45). The horizontal line indicates the means of three replicate measurements, error bars indicate SDs, and the horizontal dotted line represents the cutoff for inhibition (39.1%). (B) Inhibitory activity of antibodies from primigravid and multigravid women at enrollment. The horizontal dotted line represents the cutoff for inhibition (39.1%). *, P = 0.049 (Mann-Whitney test).