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2013 ; 42
(9
): 1067-70
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Bacterial Contamination of Iranian Paper Currency
#MMPMID26060669
Moosavy MH
; Shavisi N
; Warriner K
; Mostafavi E
Iran J Public Health
2013[Sep]; 42
(9
): 1067-70
PMID26060669
show ga
BACKGROUND: Transmission of human pathogens can be occurred via inert objects.
Paper currency is a further common contact surface whereby pathogens can be
transferred within a population although the significance remains unknown. Hence,
the aim of the present study was to investigate microbial populations associated
with Iranian paper currency. METHODS: This study was carried out by getting 108
samples of the Iranian currency notes (1000, 2000, 5000, 10000, 20000 and 50000
RIALS) from food-related shops that included food service outlets, greengrocery,
supermarket, bakery, confectionary and poultry meat retail outlets. All currency
notes were examined for total bacterial count and identification of pathogenic
bacteria. RESULTS: The average total bacterial count that was recovered from
currency notes was found to be 3.27±0.31 colony forming unites.2000R had the
highest total bacterial count, followed by 5000R, 10000R and the lowest in
50000R. In this study, the isolated bacteria recovered were Bacillus cereus
(8.33%), E. coli (48.14%), Staphylococcus aureus(28.7%), Salmonella (0.92%),
Listeria monocytogenes (0.92%), Yersinia entrocolitica(6.48%). It was revealed
that all the pathogens screened for where encountered on currency notes were
recovered from one sample. There were no significant (P>0.05) correlations
between the carriage of pathogens/fecal indicator bacteria and currency note
condition. CONCLUSION: Our findings demonstrate that Iranian currency notes
represent a significant vehicle for human pathogens.