Salmonella (IMAGE) Arizona State University Caption Salmonella typhimurium ST313 strain D23580 (pictured above in purple) has been linked to highly invasive infections. Unlike other strains that primarily cause gastroenteritis, D23580 often leads to severe and fatal systemic infections, including in the bloodstream. A new study including ASU researchers explores the effects of fluid shear in guiding the pathogen's behavior. Credit Graphic by Jason Drees Usage Restrictions None License Original 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.