FIG 3.

Characterization of anti-HlyE IgA plasma responses using ELISA (A) and DPP (B). Individual and median anti-HlyE responses with interquartile range for patients at acute phase (day 0) of enteric fever (S. Typhi or Paratyphi A), healthy and febrile controls from a typhoid-endemic area (endemic healthy and endemic febrile). Differences between cases and control groups were assessed using the Mann-Whitney test. A P of <0.05 was considered significant. ***, P < 0.0001 (red, S. Typhi; black, S. Paratyphi A).