Bio-Clean director Peter Guerin, conducted tests that show just how dirty money can be.
Germs on money may be making unwary people sick - some notes are more than six times filthier than a public lavatory.
But don't think swapping it for plastic will magically make the germs disappear.
A Public Defender investigation of 10 Melbourne Australia shoppers' wallets found cash and credit cards could be potential hotbeds for bacteria.In the worst example, a $10 note recorded a contamination count of 63,556 - that's 6.4 times higher than the average count from similar tests on public lavatory seats throughout the city.
A reading below 500 is considered acceptable.Credit and debit cards were generally cleaner, but one recorded a count...