Isolation and Identification of Bacteria on Mobile Phones among Mechanics, Civil Servants, and Food Handlers in Imo State, Nigeria
This study seeks to identify the counts and types of bacteria contaminating mobile phones used by randomly selected mechanics, civil servants, and food handlers within Owerri, Imo state. The investigation was on the antimicrobial resistance profiles of the isolates. Three hundred (300) questionnaires were distributed, of which 221 were returned in which swab samples were collected from their mobile phones using swabs moistened with sterile normal saline from an area of 3cm over mobile phone surfaces. Samples were cultured and processed by standard Microbiological procedures. Out of 221 mobile phones sampled, 147 were contaminated with bacteria. Staphylococcus aureus was the most predominant isolate followed by Bacillus cereus, Streptococcus sp., Klebsiella sp., and Proteus vulgaris. Mobile phones belonging to mechanics 81(55.10%) had the highest number of types of bacterial contamination followed by food handlers 41(27.89%) while the least was civil servants 25(17.01%). Antimicrobial susceptibility results showed that Gentamycin (22.44%) had the highest susceptibility pattern while Erythromycin (0%) had the least. This study, therefore, revealed that cell phones may have a notable role in the transmission of pathogens as well as multidrug-resistant pathogens.
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