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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.
Problemy osobo opasnyh infekcij, 07/2023 2Journal Article
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.
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