Novel transparent copper film with antibacterial activity for environmental infection control

Dear Editor, The wide distribution of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the air and object surfaces in hospital wards, which indicates a potential risk of nosocomial infection for medical staff and other close contacts, was reported from Wuhan, China.1 In another report, van Doremalen et al.2 showed that SARS-CoV-2 was not detectable on copper after 4 h, although it was stable and viable on plastic and stainless...