Ozone Water Is an Effective Disinfectant for SARS-CoV-2

Dear Editor,The severe acute respiratory syndrome coronavirus 2（SARS-Co V-2） is the causative pathogen of the pandemic coronavirus disease 2019 （COVID-19）, which has infected nearly 90 million people and resulted in 2 million human deaths by the end of the year 2020. SARS-Co V-2 can survive in aerosols or on the surfaces of various materials for up to 72 h （Ong et al. 2020; van Doremalen et al.2020）. In China, although the human-to-human transmission pathway is under well control, the fomite transmission pathway now accounts for a significant fraction of new infection cases. Therefore, environmental disinfection of public areas and workspaces potentially contaminated by SARS-Co V-2 is an important measure to control the spread of COVID-19 by fomite transmission. A disinfectant that is safe and readily available at a low cost is urgently needed to meet environmental disinfection requirements.