Findings:
Inactivation of coronavirus on copper and copper alloy surfaces results in fragmentation of the viral genome, ensuring that inactivation is irreversible. This suggests that both ionic species of copper are required directly and/or indirectly for virus inactivation and that Cu(I) may be more significant in the longer term. Brasses containing at least 70% copper were very effective at inactivating HuCoV-229E , and the rate of inactivation was directly proportional to the percentage of copper