Vibrio (image) Howard Hughes Medical Institute Share Print E-Mail Caption Some species of Vibrio bacteria (blue) can cause cholera in humans. A version of Vibrio cholerae designed to be harmless may one day protect people against the dangerous form of the bacteria. Credit Tina Carvalho, University of Hawaii at Manoa/CC BY 2.0 Usage Restrictions Follow CC BY 2.0 guidelines. 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.