Abstract: Surface bio-contamination is a problem that contributes to outbreaks of community-acquired and
nosocomial/environmental infections through episodic fomite transmission of disease and persistent fomitic
reservoirs. Public user interfaces like computer keyboard and mouse have been shown to be reservoirs and
transmitters of microorganisms. The purpose of this study therefore was to examine computer keyboards and mouse
in National Veterinary Research Institute’s cyber café in Vom, Plateau State, Nigeria for contamination by
microorganisms. Bacteria isolated include: Bacillus species, Escherichia coli, Staphylococcus aureus, S. albus,
Streptococcus epidermidis and Diptheroids. Trychophyton species, Aspergilus species and Candida albicans were
the fungi/mould isolated. Bacillus species (84%) was the most isolated bacteria. All fungi were isolated in equal
percentages (45.0%). Most of these isolates were traditional skin flora and probably dust associated. It is suggested
that routine cleaning of keyboards and mice or the use of transparent plastic covers alongside hand hygiene may aid
the fight against infection transmission via fomites.
Abstract: Surface bio-contamination is a problem that contributes to outbreaks of community-acquired andnosocomial/environmental infections through episodic fomite transmission of disease and persistent fomiticreservoirs. Public user interfaces like computer keyboard and mouse have been shown to be reservoirs andtransmitters of microorganisms. The purpose of this study therefore was to examine computer keyboards and mousein National Veterinary Research Institute’s cyber café in Vom, Plateau State, Nigeria for contamination bymicroorganisms. Bacteria isolated include: Bacillus species, Escherichia coli, Staphylococcus aureus, S. albus,Streptococcus epidermidis and Diptheroids. Trychophyton species, Aspergilus species and Candida albicans werethe fungi/mould isolated. Bacillus species (84%) was the most isolated bacteria. All fungi were isolated in equalpercentages (45.0%). Most of these isolates were traditional skin flora and probably dust associated. It is suggestedthat routine cleaning of keyboards and mice or the use of transparent plastic covers alongside hand hygiene may aidthe fight against infection transmission via fomites.
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