Disinfection of Surfaces Contaminated with SARS-CoV-2 Coronavirus by UV Radiation of Low-Pressure Mercury-Vapour Lamp

The aim of the work was to determine the effective ultraviolet (UV) doses required for the disinfection of surfaces contaminated with the SARS-CoV-2 coronavirus using a low-pressure mercury lamp. Materials and methods . To carry out prompt disinfection of surfaces, a specially designed source of UV...

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Bibliographic Details
Published in:	Problemy osobo opasnyh infekcij no. 2; pp. 134 - 139
Main Authors:	Masyakin, D. N., Alferov, A. E., Kikot’, S. G., Androshchuk, I. A., Kirillov, V. B., Kirillova, S. L., Koval’chuk, E. A., Kotov, M. A., Lopota, V. А., Rudoy, I. G., Solov’ev, N. G., Soroka, A. M., Trufanova, V. V., Chepurenkov, N. Ya, Shemyakin, A. N., Yakimov, M. Yu, Borisevich, S. V.
Format:	Journal Article
Language:	English Russian
Published:	Federal Government Health Institution, Russian Research Anti-Plague Institute “Microbe” 13-07-2023
Subjects:	disinfection sars-cov-2 coronavirus uv radiation
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Summary:	The aim of the work was to determine the effective ultraviolet (UV) doses required for the disinfection of surfaces contaminated with the SARS-CoV-2 coronavirus using a low-pressure mercury lamp. Materials and methods . To carry out prompt disinfection of surfaces, a specially designed source of UV radiation with a power of 7.5 W at a wavelength of 254 nm in the form of a portable flashlight was employed, which has a high efficiency of UV radiation output and the possibility of long-term autonomous operation from a compact battery. In the studies, a suspension culture of the SARS-CoV-2 coronavirus with biological activity of 5.3∙10 6 PFU/ml was used. The objects of testing were plastic Petri dishes (disposable) and office paper (grade C, density 80 g/m 2 ). Results and discussion . Doses of UV radiation that provide disinfection of surfaces contaminated with the COVID-19 pathogen with an efficiency of 99.0 % (paper) to 99.95 % (plastic) have been determined. The results obtained make it possible to recommend a portable UV irradiator for use in the practice of preventive measures to combat the spread of the disease caused by the SARS-CoV-2 coronavirus.
ISSN:	0370-1069 2658-719X
DOI:	10.21055/0370-1069-2023-2-134-139