@ Anaam, mostly pathogenic bacteria. For more details please have a look of the attached file.

Thank you D. J.C.Tarafdar..

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Thank you doctor J.C. Tarafdar for your interesting

A lot of microbes could be found associating with paper currencies, depending on the way they are being handled. some of those that can be found in it are Bacteria (Staphylococcus, Clebsiella, Salmonella, Proteus), Fungi (Aspergillus, Mucor ) .

Thank you sir olabisi hamzat

@ Anaam Jawad Alabbasy

Bacillus spp., Staphylococcus aureus, Escherichia coli, Pseudomonas spp. and Klebsiella spp. have been identified as common contaminants of paper currency. Please take a look at the following PDF attachment.

Thanks!