Fig. 15

Histopathological observation of mice. Note A, B, C, D liver, lung, spleen and small intestine of mice in the control group; a, b, c, d liver, lung, spleen and small intestine of 4 × 109 CFU/mL mice in the experimental group. Note a The arrow indicates a high concentration of red blood cells.; b The arrow indicates a high concentration of red blood cells; c The arrow points to an area with red blood cells and inflammatory exudate; d The arrow marks the site of small intestinal villi shedding