<i>Acinetobacter baumannii</i> Bacteria (IMAGE) Macquarie University Caption This is a highly magnified cluster of Acinetobacter baumannii bacteria, which uses a protein pump to resist the powerful hospital-grade antiseptic, chlorhexidine. Credit Public Health Image Library Usage Restrictions Free to share (must credit) 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.