Figure 1From: Differential antibody response to the Anopheles gambiae gSG6 and cE5 salivary proteins in individuals naturally exposed to bites of malaria vectorsIgG antibody response to the An. gambiae cE5 and gSG6 proteins. Comparison of the anti-cE5 and anti-gSG6 IgG responses among exposed individuals during the malaria transmission season (survey Aug 1994, n = 207, average age ±95% CI = 22.7 ± 16.9). (A) Box plots of OD values among responders to both cE5 and gSG6 antigens (n = 156). Boxes display median values, 25th and 75th percentiles. Whiskers represent 5–95 percentiles and dots the outliers. The IgG response to the cE5 protein in non-exposed individuals (n = 59, average age ±95% CI = 26.3 ± 16.1) is shown as control (C). IgG levels are expressed as OD492. P value determined by the Wilcoxon matched-pairs signed rank test (****, p < 0.0001). (B) Seroprevalence of anti-cE5 and anti-gSG6 IgG antibodies. Error bars indicate 95% confidence intervals. P value determined by Fisher’s exact test (****, p < 0.0001).Back to article page