*1 Fluence (UV Dose) Required to Achieve Incremental Log Inactivation of Bacteria, Protozoa, Viruses and Algae Revised, updated and expanded by A. Haji Malayeri, M. Mohseni, B. Cairns and J.R. Bolton. With earlier contributions by Gabriel Chevrefils (2006) and Eric Caron (2006) With peer review by B. Barbeau, H. Wright (1999) and K.G. Linden.*2 Nadia Storm et al, Rapid and complete inactivation of SARS-CoV-2 by UV-C irradiation, 2020. Report available at https://www.nature.com/articles/s41598-020-79600-8. The UV-C irradiance used in this study was 0.849 mW/cm 2.