Figure 3From: Influence of 5 major Salmonella pathogenicity islands on NK cell depletion in mice infected with Salmonella enterica serovar EnteritidisLymphocyte proliferation assay from non-infected mice (white columns), and mice infected with SPI2-negative (light grey columns) and SPI2-positive (dark grey columns) S . Enteritidis mutants after the stimulation with different concentrations of phytohaemagglutinin (PHA), concanavalin A (ConA) or pokeweed mitogen (PWM). * - t-test different from the mice infected with the SPI-2 positive S. Enteritidis at P < 0.05.Back to article page