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Brussels – Monday, 25th March, 2013 – New research from MasterCard shows that Europeans believe cash to be worn out, dirty and riddled with bacteria. 57% believe that bank notes and coins are the least hygienic item they come into contact ahead of even escalator handrails.
Independent research carried out by scientists at Oxford University reveals that European bank notes on average contain over 26,000 bacteria, with 2,400 bacteria found on the cleanest, newest currency.
Commenting on the state of the average bank note, Ian Thompson, Professor of Engineering Science at Oxford University, said: “Europeans’ perceptions of dirty cash are not without reason. The bank notes we tested harboured an average of 26,000 bacteria, which, for a number of pathogenic organisms is sufficient for passing on infection. Previous studies of bank notes have indicated contamination with potentially harmful bacteria such as Klebsiella and Enterobacter species which can cause disease in humans. Increasingly antibiotic resistant strains of bacteria are a threat, a point recently raised by Dame Sally Davies, chief medical officer of England. With banknotes passing between so many individuals there is merit in a wider study tracking the spread of resistant strains through movement of bank notes globally.”
The perception findings were conclusive, with little difference in opinion across Europe. In all 15 European countries surveyed cash was perceived to be the least hygienic item of all – more so than escalator handrails, the buttons on a payment terminal and books in a library.
Gaetano Carboni, Global Products & Solutions Lead at MasterCard Europe added, “On top of the fact that all 15 countries picked cash as the dirtiest item in the list, 83% of Europeans believe that cash contains a lot of bacteria. It’s a commonly held view that relative to other daily objects, cash is by far the most dirty. For a significant amount of people it’s interesting to see a majority of Europeans prefer paying by card and find it a simpler, more straightforward way of paying. It’s now true to say that the majority also find it more hygienic.”
 Klebsiella is a bacterium that causes respiratory, urinary, and wound infections
 Enterobacter is a natural bacterium which occurs normally or pathogenically in intestines of humans and other animals, and which sometimes grow in plants
For more information, please contact:
Name Corinne Raes, MasterCard Europe
Phone +32 2 352 5237
Name Zoe Gray, Fishburn Hedges
Phone +44 207 445 3122
Perceptions of cash across Europe, December 2012 and actual results of scientific tests, March 2013.
|Country||Column APercentage of people who view cash as dirtiest item||Column BNumber of bacteria found on national currency, in independent test|
|Denmark (krone)Russia (ruble)||62%60%||4026630000|
|Average across Europe||57%||26000|
|UK (pounds)Austria (euro)||54%54%||1820011066|
Source: TNS Data
About the findings:
This report presents the result of an online omnibus survey. The 3 questions were asked to approximately 1,000 respondents in each of the 15 following countries: GB, Norway, Sweden, Finland, Denmark, Germany, Netherlands, Belgium, France, Switzerland, Austria, Spain, Italy, Poland, Russia.
The research was conducted between December 14th and 20th 2012.
The results were weighted on age, gender and region, in order to reflect each country’s population.
How the tests were conducted and how many bank notes were tested:
Banknotes were swabbed with buffer solution (PBS) to suspend the bacteria, and this was then diluted in series and pipetted onto Tryptic Soy agar Petri dishes; a nutrient source on which bacteria can grow. The Petri dishes were then incubated for 5 days at 30ºC and the number of bacteria was then counted in triplicate (colony forming units, CFU). Because only around 1% of bacteria can grow in the lab, results were then multiplied by 100 to obtain the approximate number of bacteria on each note. This is standard practice to quantify environmental bacteria in vitro.
We tested 25 different bank notes, across 6 different currencies, and ten individual swabs were taken on each note.
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