Detection of pathogenic bacteria associated with earphones used by students of Stamford University Bangladesh

O. A. Chowdhury, Md. Raihan Ahmed, Md. Raihan Dipu, Md. Aftab Uddin
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Abstract

The use of earphones has increased in recent times throughout the world especially among the different level of students such as school, college or university who have a higher tendency of sharing these among them. Unlike airline headsets, headphones and stethoscope ear-pieces, ear phones are often shared by multiple users and can be a potential medium for transmission of pathogens, which can give rise to various ear related infections. The objective of this study was to detect the pathogenic bacteria from the ear-phones used by the students of Stamford University Bangladesh. A total of 16 ear-phone swabs were collected by sterile cotton swabs. The swabs were inoculated onto blood agar and incubated aerobically overnight at 37oC. Microscopic observation and standard biochemical tests were performed to confirm the identification of all the bacterial isolates. Six presumptively identified Staphylococcus spp. (38%) were tested against six different types of antibiotics following Kirby-Bauer disk diffusion method. Isolates were found to be 84% resistant against Cotrimoxazole and demonstrated 100% sensitivity to Vancomycin and Ciprorofloxacin. The findings of this study suggest the users to disinfect their respective ear phones and not to exchange them as they may act as a potential source to transfer pathogenic and antibiotic resistant bacteria among the ear phone users. Stamford Journal of Microbiology, Vol.10 (1) 2020: 1-4
孟加拉国斯坦福德大学学生耳机相关致病菌检测
近年来,耳机的使用在世界各地有所增加,特别是在不同层次的学生中,如中学、学院或大学,他们更倾向于在他们之间分享耳机。与飞机上的耳机、耳机和听诊器耳塞不同,耳机通常由多名用户共用,可能是病原体传播的潜在媒介,可能导致各种与耳朵有关的感染。本研究的目的是检测孟加拉国斯坦福德大学学生使用的耳机中的致病菌。采用无菌棉签法采集耳塞拭子16份。将拭子接种于血琼脂上,37℃有氧培养过夜。显微镜观察和标准生化试验证实了所有分离细菌的鉴定。采用Kirby-Bauer盘片扩散法对6种不同类型抗生素进行了6例(38%)葡萄球菌推定鉴定。发现分离株对复方新诺明的耐药率为84%,对万古霉素和环丙氧氟沙星的敏感性为100%。本研究结果建议用户对各自的耳机进行消毒,不要交换耳机,因为耳机可能成为耳机使用者之间传播致病菌和耐抗生素细菌的潜在来源。微生物学报,Vol.10 (1) 2020: 1-4
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