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. 2016 Jan 7;11(1):e0145945. doi: 10.1371/journal.pone.0145945

Fig 3. Vi expression decreases antibody and complement binding to Salmonella in the absence of specific antibodies.

Fig 3

Levels of (A and B) IgG, (C and D) C3 and (E and F) C5b-9 MAC on Vi-expressing and non-expressing Salmonella Typhimurium (STM) and S. Typhi (STY) after incubation with sera containing anti-Vi IgG (A, C and E) or lacking anti-Vi IgG (B, D and F) were measured by flow cytometry. Levels of IgM binding to Vi+/- Salmonella for all ten sera were also assessed (G). All sera contained IgM anti-Vi antibodies. Bars represent mean +/- SEM