Richer nations have cleaner banknotes

The richer, more developed and more economically free a country, the fewer bacteria its banknotes carry. Also the material and the age of the banknotes - or the money has a lot wrinkled - is of influence on the degree of clogging of the money. Nowhere in the world were alarming concentrations of unhealthy bacteria on money found. That becomes clear from a study by ten universities and institutes in 10 countries. Research workers of Wageningen University, part of Wageningen UR, looked at the paper money in the Netherlands.

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