<i>Klebsiella pneumoniae</i> (IMAGE) University at Buffalo Caption This is a human neutrophil (grey) is interacting with Klebsiella pneumoniae (pink). A hypervirulent version of this pathogen is sparking increasing concern. Credit National Institute of Allergy and Infectious Disease 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.