FIGURE 5.
Correlation of 9G4+ IgG levels and protection from acute febrile malaria. Seventy-four seven to nine year old children (nine seven year olds; 51 eight year olds; 14 nine year olds) were grouped as protected or not from acute malaria and either PCR+ for malaria parasites or not before the malaria season. (A). 9G4+-IgG levels in May at the end of the dry season prior to the malaria transmission season. Medians are shown. Statistical comparisons were by Mann-Whitney test. (* = p < 0.05) (B) Total IgG levels in May at the end of the dry season prior to the malaria transmission season. Medians are shown. Statistical comparisons were by Mann-Whitney test. (* = p < 0.05) (C) Multiple logistic regression testing whether 9G4+ IgG or 9G4+ IgM levels at the end of the dry season predicted resistance to acute febrile malaria during the ensuing malaria transmission season. Logistic regression was fit using JMP11.
