Human coronavirus proliferates at least for 5 days on the materials such as plastic, ceramic tile, glass, and stainless steel. 

Also, the hand-infected germs(bacteria) can form great environment for virus to self-replicate.

Antimicrobial copper inhibits the replication of germ that prevent the viruses to self-replicate.

According to the research, including copper and copper alloy, ‘antimicrobial copper’  rapidly deactivated the 

coronavirus within couple minutes when the coronavirus touched the surface of it.