Microbes are known to contaminate money. In the project CleanCoin, funded by INCM, Carla C.C.R. de Carvalho (iBB-2BRG), Telmo Santos (UNIDEMI, UNL) and Maria José Caramujo (cE3c, FCUL, UL), studied the bacterial population present at the surface of coins. In a recently published white paper, the research team and collaborators from INCM, present the results and compare the number of viable bacteria in coins with those found on other objects such as bank cards and mobile phones. See more.