Keyboard cleanliness: a controlled study of the residual effect of chlorhexidine gluconate

Am J Infect Control. 2015 Mar 1;43(3):289-91. doi: 10.1016/j.ajic.2014.12.002.

Abstract

A controlled trial of once daily cleaning of computer keyboards in an intensive care unit was performed comparing 2% chlorhexidine gluconate-70% isopropyl alcohol (CHG) and a chlorine dioxide-based product used as a standard in our hospital. A study before and after the introduction of once daily keyboard cleaning with CHG in the wider hospital was also completed. Cleaning with CHG showed a sustained and significant reduction in bacterial colony forming units compared with the chlorine dioxide-based product, demonstrating its unique advantage of maintaining continuous keyboard cleanliness over time.

Keywords: Chlorhexidine; Cross contamination; Disinfection; Keyboards; Residual effect.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 2-Propanol / administration & dosage
  • Bacteria / isolation & purification*
  • Chlorhexidine / administration & dosage
  • Chlorhexidine / analogs & derivatives*
  • Chlorine Compounds / administration & dosage*
  • Colony Count, Microbial
  • Disinfectants / administration & dosage*
  • Disinfection / methods*
  • Environmental Microbiology*
  • Fomites / microbiology*
  • Humans
  • Oxides / administration & dosage*

Substances

  • Chlorine Compounds
  • Disinfectants
  • Oxides
  • chlorine dioxide
  • chlorhexidine gluconate
  • 2-Propanol
  • Chlorhexidine