Inactivation of influenza A virus on copper versus stainless steel surfaces

Appl Environ Microbiol. 2007 Apr;73(8):2748-50. doi: 10.1128/AEM.01139-06. Epub 2007 Jan 26.


Influenza A virus particles (2 x 10(6)) were inoculated onto copper or stainless steel and incubated at 22 degrees C at 50 to 60% relative humidity. Infectivity of survivors was determined by utilizing a defined monolayer with fluorescent microscopy analysis. After incubation for 24 h on stainless steel, 500,000 virus particles were still infectious. After incubation for 6 h on copper, only 500 particles were active.

MeSH terms

  • Copper*
  • Influenza A Virus, H1N1 Subtype / physiology*
  • Microbial Viability*
  • Microscopy, Fluorescence
  • Stainless Steel*
  • Virus Inactivation*


  • Stainless Steel
  • Copper