FIG 3.

Salmonella coinfection enhances local and systemic inflammation. Gastric inflammation (mean percent fields containing neutrophils, mononuclear cells, or metaplasia) (A) and IFN-γ (B) were induced by H. pylori infection alone and increased slightly in coinfections with Salmonella. (C)Infection with Salmonella markedly increased serum IFN-γ compared to that with H. pylori alone or in uninfected mice. Data are from mice 8 weeks after H. pylori infection or at an equivalent age for uninfected mice. Each data point represents one mouse. Bars indicate means ± SEMs. **, P < 0.01; ***, P < 0.005.