Abstract
Cell phones may be an ideal habitat for colonization by bacterial pathogens, especially in hot climates, and may be a reservoir or vehicle in transmitting nosocomial infections. We investigated bacterial contamination on cell phones of healthcare workers in three hospitals in Saudi Arabia and determined antibacterial resistance of selected bacteria. A questionnaire was submitted to 285 healthcare workers in three hospitals, and information was collected on cell phone usage at the work area and in the toilet, cell phone cleaning and sharing, and awareness of cell phones being a source of infection. Screening on the Vitek 2 Compact system (bioMérieux Inc., USA) was done to characterize bacterial isolates. Of the 60 samples collected from three hospitals, 38 (63.3%) were positive with 38 bacterial isolates (4 Gram-negative and 34 Gram-positive bacteria). We found 38.3% of cell phones were contaminated with coagulase-negative staphylococci, particularly Staphylococcus epidermidis (10 isolates). Other bacterial agents identified were S. aureus, S. hominis, Alloiococcus otitis, Vibrio fluvialis, and Pseudomonas stutzeri. Antimicrobial susceptibility testing showed that most coagulase-negative staphylococci were resistant to benzylpenicillin, erythromycin, and rifampicin. Eight isolates were resistant to oxacillin, specifically S. epidermidis (3), S. hominis (2), and S. warneri (2). A. otitis, a cause of acute otitis media showed multidrug resistance. One isolate, a confirmed hetero-vancomycin intermediate-resistant S. aureus, was resistant to antibiotics, commonly used to treat skin infection. There was a significant correlation between the level of contamination and usage of cell phone at toilet and sharing. Our findings emphasize the importance of hygiene practices in cell phone usage among healthcare workers in preventing the transmission of multidrug-resistant microbes.
Highlights
The popularity of cell phones with healthcare professionals and lack of antiseptic practices make them potential routes of transmission of bacterial pathogens [1]
Contamination of the healthcare environment coupled with nosocomial infections can lead to contamination of the cell phones of healthcare workers [10]
The hands of healthcare workers can be contaminated with different bacterial pathogens, and healthcare workers utilize cell phones in laboratories, hospital halls, operating rooms, and intensive care units [11]
Summary
The popularity of cell phones with healthcare professionals and lack of antiseptic practices make them potential routes of transmission of bacterial pathogens [1]. It has been reported that inanimate objects used by healthcare workers including cell phones act as important origins of nosocomial infections [2]. The cell phones of healthcare workers may act as reservoirs of nosocomial pathogens, which can be transmitted from the cell phone by the hands of a healthcare worker, thereby spreading bacterial isolates from one patient to another in various hospital wards [3]. The increasing significance of multidrugresistant strains including staphylococci, among other etiologic agents of nosocomial infections, imposes on researchers the need to seek possible ways in the spread of these pathogens and ensure their robust and effective prevention.
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