作者
Marie-Eve Dubuis, Nathan Dumont-Leblond, Camille Laliberté, Marc Veillette, Nathalie Turgeon, Julie Jean, Caroline Duchaine
发表日期
2020/4/10
期刊
PLoS One
卷号
15
期号
4
页码范围
e0231164
出版商
Public Library of Science
简介
This study was designed to test the efficacy of an air treatment using ozone and relative humidity (RH) for the inactivation of airborne viruses. Four phages (φX174, PR772, MS2 and φ6) and one eukaryotic virus (murine norovirus MNV-1) were exposed to low ozone concentrations (1.23 ppm for phages and 0.23 ppm for MNV-1) and various levels of RH for 10 to 70 minutes. The inactivation of these viruses was then assessed to determine which of the tested conditions provided the greatest reduction in virus infectivity. An inactivation of at least two orders of magnitude for φX174, MS2 and MNV-1 was achieved with an ozone exposure of 40 minutes at 85% RH. For PR772 and φ6, exposure to the reference condition at 20% RH for 10 minutes yielded the same results. These findings suggest that ozone used at a low concentration is a powerful disinfectant for airborne viruses when combined with a high RH. Air treatment could therefore be implemented inside hospital rooms ventilated naturally.
学术搜索中的文章
ME Dubuis, N Dumont-Leblond, C Laliberté, M Veillette… - PLoS One, 2020