Antibiotic Susceptibility Pattern of Bacterial Pathogens Isolated from Ethiopian Paper Currency Notes in Wolaita Sodo, Southern Ethiopia
The present study was conducted to isolate pathogenic bacteria and their antimicrobial resistance pattern from Ethiopian paper currency notes in Wolaita Sodo town. A total of 240 Ethiopian paper currency notes samples in different denominations were collected from four different sources such as market, taxi drivers, fruit sellers and hotels. All the samples were processed to isolate bacterial pathogens using standard techniques and identified by different biochemical tests. Further all identified isolates were used to know the sensitivity/resistant patterns by Bauer-Kirby method based on the zone formation. Out of 240 paper currency notes samples, 120 were showed positive with four different genus such as Staphylococcus aureus, Escherichia coli, Shigella sp. and Salmonella sp. Among these four different genera, S. aureus were highly prevalent (20.8%) followed by E. coli (14.58%), Shigella sp. (10.81%), and Salmonella sp. (3.74%). From the selected four different sources of currency notes such as market, taxi drivers, fruit sellers and hotel, currency notes collected from market area showed the highest rate of contamination followed by taxi drivers, fruit sellers and hotel. S.s aureus, E. coli, Salmonella spp. and Shigella sp. showed resistivity varied from 70-100% against all the antibiotics. Tobramycin showed 20% effective against S. aureus, 11.5% effective against Shigella spp. and 33% effective against Salmonella spp. while E. coli showed 14% sensitivity against Metronidazole antibiotics. Therefore, the present study concludes that the Ethiopian Paper currency notes contaminated with bacterial pathogens and play significant role in the transmission of human pathogenic microorganisms.
Keywords: Prevalence, Pathogenic bacteria, Paper Currency and Antimicrobial susceptibility
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