Journal of Advanced Microbiology

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Abstract: In the present study, total 77 Indian paper currency samples of different denominations (Rs

10, 20, 50 and 100) were randomly collected from fifteen different sources of Delhi in a sterile polybags. All the

samples were analyzed by swab method for enumeration of total bacterial, total yeast and mould and coliform

population as well as isolation and identification of relevant pathogenic bacteria. The result showed that total

bacterial load in all 77 samples ranges from 52 to 3.8 x 106 cfu swab-1 whereas 22 samples were contaminated with

total yeast and mould lie in the range from 24 to 1.3 x 106 cfu swab-1 and 22 samples were contaminated with

coliform, ranges from 34 to 8.4 x 102 cfu swab-1. The most prevalent microorganisms found were Staphylococcus

aureus (6.49 %), Pseudomonas aeruginosa (5.19 %), Salmonella sp. (7.79 %), Escherichia coli (9.09 %) and

Shigella sp. (1.29 %). Antibiotic susceptibility and resistance pattern was also checked by Kirby Bauer well

diffusion method. Various antibiotics were used against each isolated pathogens. These microbes could be one

of the major sources of transmittance of diseases in Delhi.