"Avoid contact of used currency notes and the coins
with the mouth and eatable items as it may contain
a lot of dirt and disease causing microbes"
Studies have found
a lot of microbes on the
currency notes and coins
which can cause diseases;
therefore, handle currency carefully.
Hand should be washed after handling currency,
especially before eating etc.
Reference: Basavarajappa KG, Rao PN, Suresh K.
Study of bacterial, fungal, and parasitic contaminaiton of currency notes in circulation.
Indian J Pathol Microbiol. 2005 Apr;48(2):278-9.