What types of germ or dirt is found on money?

Various types of germs can be found on money, such as bacteria like E. coli and Staphylococcus aureus, as well as viruses like the flu virus. Dirt, grime, and even traces of drugs can also be present on money due to its frequent handling and exposure to various environments. Regular hand washing after handling money can help reduce the risk of transferring these contaminants.