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. 2010 Jan 26;5(1):e8902. doi: 10.1371/journal.pone.0008902

Figure 1. The effect of HIV infection on C3b/iC3b deposition on Streptococcus pneumoniae.

Figure 1

(A) Fluorescent Index (FI) of C3b/iC3b deposition on D39 S. pneumoniae incubated in 20% human serum from HIV positive (open bars, n = 23) or negative individuals (slashed bars, n = 15), P = 0.037 Mann-Whitney U test. (B). FI of C3b/iC3b deposition on D39 incubated in 20% serum from HIV positive (open bars) or negative (slashed bars) individuals over time. Samples 1, 2 and 3 were collected sequentially from individuals. ANOVA P = 0.42) (C) C3b/iC3b deposition on D39 from HIV positive individuals was plotted against the CD4 cell count for that individual, Pearson's correlation co-efficient P = 0.382 R2 = 0.029).