Bacterial Contamination of Microphones used in places of worship in Umuahia, Abia State, Nigeria
Keywords:Mouthpiece, Microphone, Antibiotics, Sensitivity, Resistance
Bacteria can survive on the surface of the microscopic grooves and cracks and will go unnoticed, hence the presence of pathogenic bacteria on the user interface of microphone possesses a potential risk to vulnerable, immune compromised individuals. The aim of this study was to study the antibiotics patterns of bacteria isolated from microphones used at different churches in Umuahia, Abia State, Nigeria. 100 samples were collected from the mouthpiece and handles of the various microphones from 22 different churches in Umuahia with sterile swab sticks moistened with normal saline. A total of 85 isolates comprising of eight (8) genera were characterized from the samples. These organisms included Staphylococcus sp, Coagulase negative Staphyococcus (CoNS), Streptococcus
sp, Micrococcus sp, Bacillus sp, Proteus sp, Escherichia coli and Pseudomonas sp. Frequency distribution of the isolates was as follows Staphylococcus sp. (5.88% of total), Coagulase negative Staphylococcus (CoNS) were (11.76%), Streptococcus sp. (9.41%), Micrococcus sp. (1.18%), Bacillus sp. (3.53%), Proteus sp. (17.65%), Escherichia coli (36.47%) and Pseudomonas sp. (14.12%). The sensitivity and resistance testing of the bacteria to different antibiotics showed that all the isolates were 100% sensitive to Peflacine, Ciprofloxacin and Gentamicin. The highest percentage resistance of 42.85% was recorded for Ampicillin while the least percentage resistant of
14.28% was recorded for Ofloxacin, Streptomycin and Cefalexin each. This study showed that microphones can aid in the spread of pathogenic microorganisms between individuals and among groups at large.
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