Figure 2From: The inhibitory effect of colloidal bismuth hydroxide gel on Escherichia coli O157:H7 and on the activity of Shiga toxinsPhotographs of incubated phage lysis plates. A. Without bismuth. B. With 1.25 mg/ml of bismuth. C. With 5 mg/ml of bismuth. D. With 10 mg/ml of bismuth.Back to article page