High Throughput Metagenomic Analysis Exposes Mobile Phones as Potentially Hazardous Microbial Platforms Warranting Robust Public Health and Biosecurity Protocols
Abstract Introduction. Advancements in technology and communication have revolutionised the 21st century with the introduction of mobile phones and smartphones. These phones are known to be platforms harbouring microbes with recent research shedding light on the abundance and broad spectrum of organisms they harbour. Mobile phone use in the community and in professional sectors including health care settings is a potential source of microbial dissemination.Aim. To identify the diversity of microbial genetic signature present on mobile phones owned by hospital medical staff.Methods. Twenty-six mobile phones of health care staff were swabbed. DNA extraction for downstream next generation sequencing shotgun metagenomic microbial profiling was performed. Survey questionnaires were handed to the staff to collect information on mobile phone usage and users’ behaviours.Results. A total of 11259 organisms derived from 26 phones were found with 2096 genes coding for antibiotic resistance and virulent factors. These organisms corresponded to 5717 bacteria, 675 fungi, 93 protists, 320 viruses, 4456 bacteriophages. The survey of medical staff showed that 46% (12/26) of the participants used their mobile phones in the bathroom.Discussion/conclusion. Mobile phones are vectors of microbes and can contribute to microbial dissemination and nosocomial diseases worldwide. As fomites, mobile phones that are not decontaminated may pose serious risks for public health and biosecurity.