Hippocrates, often referred to as 'the father of medicine', noted that copper could be used to treat leg ulcers. Today, copper is a common constituent in medicines including antiseptic and antifungal creams, and is becoming a must-have material for hospitals and public spaces around the world.
“Copper is considered safe to humans, as demonstrated by the widespread and prolonged use of copper intrauterine devices (IUDs) by women. ”
In March 2013 a representative of the Copper Development Association, which has coordinated much of the recent research as steward of the EPA registration activities, told us researchers have yet to find any type of germ that is not killed by physical contact with bare copper. By contrast, a number of the studies cited note that on stainless steel and other surfaces harmful microorganisms can live for weeks or even months.
No germs are believed to have developed resistance to copper, even though humans have used copper for over 4000 years. Copper is even effective against newly evolved antibiotic-resistant strains of old public health enemies.