Ultraviolet irradiation doses for coronavirus inactivation – review and analysis of coronavirus photoinactivation studies
GMS Hyg Infect Control. 2020; 15: Doc08.
Published online 2020 May 14. doi: 10.3205/dgkh000343
Results: “The available data reveals large variations, which are apparently not caused by the coronaviruses but by the experimental conditions selected. If these are excluded as far as possible, it appears that coronaviruses are very UV sensitive. The upper limit determined for the log-reduction dose (90% reduction) is approximately 10.6 mJ/cm2 (median), while the true value is probably only 3.7 mJ/cm2 (median).”
Conclusion: “Since coronaviruses do not differ structurally to any great exent, the SARS-CoV-2 virus – as well as possible future mutations – will very likely be highly UV sensitive, so that common UV disinfection procedures will inactivate the new SARS-CoV-2 virus without any further modification.”