Fig. 6.

Survival rate of the control and vaccinated mice after challenging with lethal dose of S. flexneri. (i) After challenge, 100% vaccinate mice were survived (red line) (ii) among non-vaccinated control mice, 37.5% of them died within seven days after the challenge (blue line). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)