Disinfection of Surfaces Contaminated with SARS-CoV-2 Coronavirus by UV Radiation of Low-Pressure Mercury-Vapour Lamp-Reference-Cited by-同舟云学术

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

Published:2023-07-13 Issue:2 Volume: Page:134-139
ISSN:2658-719X
Container-title:Problems of Particularly Dangerous Infections
language:
Short-container-title:Problemy Osobo Opasnykh Infektsii

Author:

Masyakin D. N.¹,Alferov A. E.¹,Kikot’ S. G.²,Androshchuk I. A.¹^ORCID,Kirillov V. B.¹^ORCID,Kirillova S. L.¹^ORCID,Koval’chuk E. A.¹^ORCID,Kotov M. A.³^ORCID,Lopota V. А.⁴^ORCID,Rudoy I. G.⁵,Solov’ev N. G.³,Soroka A. M.⁵,Trufanova V. V.¹,Chepurenkov N. Ya.¹,Shemyakin A. N.³,Yakimov M. Yu.³^ORCID,Borisevich S. V.¹^ORCID

Affiliation:

1. 48th Central Research Institute of the Ministry of Defense of the Russian Federation

2. Directorate of the Chief of Radiation, Chemical and Biological Protection Troops of the Armed Forces of the Russian Federation

3. Ishlinsky Institute for Problems in Mechanics of the Russian Academy of Sciences

4. Russian State Scientific Centre for Robotics and Technical Cybernetics

5. Innovative Scientific and Technological Company “ProTech”

Abstract

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.

Publisher

Russian Research Anti-Plague Institute Microbe

Subject

Infectious Diseases,Microbiology (medical),Immunology,Microbiology,Epidemiology

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