Lifting The Lid On Computer Filth
Office workers are exposed to more germs from their phones and keyboards than toilet seats, scientists reveal.
A desk is capable of supporting 10 million microbes and the average office contains 20,961 microbes per square inch, according to research at the University of Arizona.
"Desks are really bacteria cafeterias."
Charles Gerba, microbiologist
The key offenders:
- telephones, which harbor up to 25,127 microbes per square inch
- keyboards average 3,295 microbes per square inch
- computer mice hold as many as 1,676 microbes per square inch.
The average toilet seat contains 49 microbes per square inch.
"When someone is infected with a cold or flu bug the surfaces they touch during the day become germ transfer points because some cold and flu viruses can survive on surfaces for up to 72 hours."
- ibid
"An office can become an incubator."
- ibid
"The superhighways for bacteria are hands and the surfaces we touch."
- Professor Sally Bloomfield, microbiologist
A solution?
Dr Gerba's study found bacteria levels increased drastically during the day, peaking after lunch. Food spills can support mini eco-systems. The study found that where office workers clean their desks with disinfecting wipes, bacterial levels were reduced by 99%.
"Without cleaning, a small area on your desk or phone can sustain millions of bacteria that could potentially cause illness."
- Gerba, ibid
British microbiologist Professor Sally Bloomfield said the study reinforced the need for good hygiene practice both at work and in the home. "Viruses are transferred by our hands, especially cold viruses." She said it was impossible to turn our surroundings into sterile zones, but we can minimise the risk by washing our hands regularly and using alcohol-impregnated wipes on office objects like phones and keyboards.


