Disinfection of Surfaces Contaminated with SARS-CoV-2 Coronavirus by UV Radiation of Low-Pressure Mercury-Vapour Lamp
| Autor: | D. N. Masyakin, A. E. Alferov, S. G. Kikot’, I. A. Androshchuk, V. B. Kirillov, S. L. Kirillova, E. A. Koval’chuk, M. A. Kotov, V. А. Lopota, I. G. Rudoy, N. G. Solov’ev, A. M. Soroka, V. V. Trufanova, N. Ya. Chepurenkov, A. N. Shemyakin, M. Yu. Yakimov, S. V. Borisevich |
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| Jazyk: | ruština |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Проблемы особо опасных инфекций, Vol 0, Iss 2, Pp 134-139 (2023) |
| Druh dokumentu: | article |
| ISSN: | 0370-1069 2658-719X |
| DOI: | 10.21055/0370-1069-2023-2-134-139 |
| Popis: | 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∙106 PFU/ml was used. The objects of testing were plastic Petri dishes (disposable) and office paper (grade C, density 80 g/m2 ). 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. |
| Databáze: | Directory of Open Access Journals |
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