(IMAGE) INSERM (Institut national de la santé et de la recherche médicale) Caption This image shows the principle of the use of modified bacteria for medical diagnosis. Credit ©J. Bonnet/ Inserm. Usage Restrictions None License Licensed content 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.