Susceptibility of SARS-CoV-2 to UV irradiation
et al., American Journal of Infection Control, doi:10.1016/j.ajic.2020.07.031, Oct 2020
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In vitro study showing high infectious titer SARS-CoV-2 completely inactivated by UVC irradiation in 9 minutes. The UVC dose required for complete inactivation was 1,048 mJ/c.
Heilingloh et al., 31 Oct 2020, Germany, peer-reviewed, 12 authors.
Contact: adalbert.krawczyk@uni-due.de.
Susceptibility of SARS-CoV-2 to UV irradiation
American Journal of Infection Control, doi:10.1016/j.ajic.2020.07.031
The coronavirus SARS-CoV-2 pandemic became a global health burden. We determined the susceptibility of SARS-CoV-2 to irradiation with ultraviolet light. The virus was highly susceptible to ultraviolet light. A viral stock with a high infectious titer of 5 £ 10 6 TCID 50 /mL was completely inactivated by UVC irradiation after nine minutes of exposure. The UVC dose required for complete inactivation was 1,048 mJ/cm 2 . UVA exposure demonstrated only a weak effect on virus inactivation over 15 minutes. Hence, inactivation of SARS-CoV-2 by UVC irradiation constitutes a reliable method for disinfection purposes in health care facilities and for preparing SARS-CoV-2 material for research purpose.
References
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