Filthy keyboards
Researchers tested computer keyboards in a London office and found high levels of bacteria:
In one case, a microbiologist recommended the removal of a keyboard as it had 150 times the recommended limit of bacteria.
That meant it was five times filthier than a toilet seat that was swabbed in the same test.
The main cause of a bug-infested keyboard is eating lunch at your desk, as the crumbs encourage the growth of millions of bacteria.
Poor personal hygiene, such as dodging the wash basin after going to the toilet, may also be to blame.
Vindication! I’ve occasionally washed my hands up to my elbows with anti-bacterial soap after using keyboards in an office full of coughers. Now I can point to some research. I’m no longer obsessive-compulsive, just prudent.