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. 2014 Jun 4;90(6):1024–1030. doi: 10.4269/ajtmh.13-0261

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©The American Society of Tropical Medicine and Hygiene

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Figure 1. — Interferon-gamma (IFN-γ) enzyme-linked immunosorbent spot (ELISPOT) responses to S. Typhi antigens in peripheral blood mononuclear cells (PBMCs) from patients with typhoid fever at acute and convalescent phases of illness. KLH = keyhole limpet hemocyanin; PHA = phytohaemagglutinin; HC = healthy controls; MP = membrane preparation. * indicates statistically significant increase (P < 0.05) at acute and convalescent phase of illness in typhoid fever patients compared with healthy controls. Φ indicates statistically significant increase (P < 0.05) at acute compared with convalescent phase of illness in typhoid fever patients.