Computer keyboards in health-care settings should be disinfected daily, UNC Health Care study concludes
First, the researchers took samples from 25 computer keyboards at various locations inside UNC Hospitals and tested the samples for bacterial contamination. They found that each keyboard was contaminated with at least two types of bacteria. In particular, every keyboard tested positive for coagulase-negative staphylococci or CoNS, which is a major cause of bloodstream infections in hospitalized patients. In addition, 13 other types of bacteria were found, with the most common, after CoNS, being diphtheroids (found on 20 computers, or 80 percent), Micrococcus species (72 percent) and Bacillus species (64 percent).
Corn Flakes 15% Boiled sweet 15% Noodles 7% Vegetable piece 4% Leaf 1% Pencil lead/shavings 1% Staple 1% Finger nail <1% Tape/plastic <1% Insect <1% More follows... Foil <1% Hair <1% Unidentified particles resembling aerated cereal grains, biscuit crumbs, bread crumbs, pastry flakes and chocolate/sweet crumbs* 56% *This remaining 1.06g (56%) comprised of featureless particles and dusts that were unidentifiable by eye.