Salmonella (IMAGE) Howard Hughes Medical Institute Caption When microbes like Salmonella (green) infect human cells, they overrun the cells' liquid interiors. Researchers have discovered how cells fight back: with a detergent-like molecule, called APOL3, that kills the bacteria by breaking up their membranes. Credit R. Gaudet et al./Science 2021 Usage Restrictions Must use 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.