graphical abstract (IMAGE) Flinders University Caption Biofilms, a slimy substance found on drains and around the faucet of handbasins, contain a community of microbes including disease-causing pathogens that can pose a threat to human health. Credit Flinders University Usage Restrictions use only with this release 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.