Shiga Toxin (image) DOE/Lawrence Berkeley National Laboratory Share Print E-Mail Caption A 3-D ribbon model representing a protein subunit of the Shiga toxin. The bacteria-produced toxin causes dysentery in humans. Credit Wikimedia Commons Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.