Here's an interesting reference (viruses): https://www.sciencedirect.com/science/article/pii/S0304389416302382 https://www.sciencedirect.com/science/article/pii

Here's an interesting reference (viruses): https://www.sciencedirect.com/science/article/pii/S0304389416302382 https://www.sciencedirect.com/science/article/pii/S030438941... And more generally (bacteria): https://en.wikipedia.org/wiki/Antimicrobial_copper-alloy_touch_surfaces https://en.wikipedia.org/wiki/Antimicrobial_copper-alloy_tou... EDIT: https://en.wikipedia.org/wiki/Antimicrobial_properties_of_copper#Influenza_A https://en.wikipedia.org/wiki/Antimicrobial_properties_of_co...