McMaster University Nov 26 2024 A novel new test for bacteria in fluids makes it as easy as observing a color change to confirm the presence of disease-causing pathogens, promising much easier diagnostic tests and greater food safety. Engineers and biochemists at McMaster university have brought their skills together to make it possible for untrained users to confirm contamination in fluids using a biogel test that changes color in the presence of such bacteria as E. coli, listeria and other