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      Peligros en la utilización de cabinas de desinfección contra el SARS-CoV-2 Translated title: Hazards in the use of disinfection cabinets against SARS-CoV-2

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          Abstract

          RESUMEN La pandemia producida por el coronavirus SARS-CoV-2 está causando estragos sanitarios y económicos en todo el mundo, obligando a la reorientación de recursos para disminuir el contagio y superar los problemas económicos. En ese sentido se comenzaron a construir y emplear las cabinas de desinfección para eliminar el SARS-CoV-2 de forma externa, las cuales eran colocadas en las entradas de los hospitales para rociar con agentes desinfectantes a las personas que entraban y salían del lugar, a pesar de que los productos empleados están habilitados para ser utilizados sobre objetos y por un tiempo determinado, lo cual representaba un riesgo para la salud del usuario por lo que se requería de un estudio para establecer los peligros relacionados y desaconsejar su utilización.

          Translated abstract

          ABSTRACT The pandemic produced by the SARS-CoV-2 coronavirus is causing health and economic havoc throughout the world, forcing the redirection of resources to reduce contagion and overcome economic problems. In this sense, they began to build and use disinfection cabins to eliminate SARS-CoV-2 externally, which were placed at the entrances of hospitals to spray disinfectants with disinfectants to people who entered and left the place, despite the fact that the products used are enabled to be used on objects and for a certain time, which represented a risk to the health of the user, so a study was required to establish the related dangers and advise against their use.

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          Most cited references11

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          Use of UV-C radiation to disinfect non-critical patient care items: a laboratory assessment of the Nanoclave Cabinet

          Background The near-patient environment is often heavily contaminated, yet the decontamination of near-patient surfaces and equipment is often poor. The Nanoclave Cabinet produces large amounts of ultraviolet-C (UV-C) radiation (53 W/m2) and is designed to rapidly disinfect individual items of clinical equipment. Controlled laboratory studies were conducted to assess its ability to eradicate a range of potential pathogens including Clostridium difficile spores and Adenovirus from different types of surface. Methods Each test surface was inoculated with known levels of vegetative bacteria (106 cfu/cm2), C. difficile spores (102-106 cfu/cm2) or Adenovirus (109 viral genomes), placed in the Nanoclave Cabinet and exposed for up to 6 minutes to the UV-C light source. Survival of bacterial contaminants was determined via conventional cultivation techniques. Degradation of viral DNA was determined via PCR. Results were compared to the number of colonies or level of DNA recovered from non-exposed control surfaces. Experiments were repeated to incorporate organic soils and to compare the efficacy of the Nanoclave Cabinet to that of antimicrobial wipes. Results After exposing 8 common non-critical patient care items to two 30-second UV-C irradiation cycles, bacterial numbers on 40 of 51 target sites were consistently reduced to below detectable levels (≥ 4.7 log10 reduction). Bacterial load was reduced but still persisted on other sites. Objects that proved difficult to disinfect using the Nanoclave Cabinet (e.g. blood pressure cuff) were also difficult to disinfect using antimicrobial wipes. The efficacy of the Nanoclave Cabinet was not affected by the presence of organic soils. Clostridium difficile spores were more resistant to UV-C irradiation than vegetative bacteria. However, two 60-second irradiation cycles were sufficient to reduce the number of surface-associated spores from 103 cfu/cm2 to below detectable levels. A 3 log10 reduction in detectable Adenovirus DNA was achieved within 3 minutes; after 6 minutes, viral DNA was undetectable. Conclusion The results of this study suggest that the Nanoclave Cabinet can provide rapid and effective disinfection of some patient-related equipment. However, laboratory studies do not necessarily replicate ‘in-use’ conditions and further tests are required to assess the usability, acceptability and relative performance of the Nanoclave Cabinet when used in situ.
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            2020 COVID-19 coronavirus ultraviolet susceptibility

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              Actualización de la estrategia frente a la COVID‑19

              (2020)
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                Author and article information

                Journal
                anales
                Anales de la Facultad de Ciencias Médicas (Asunción)
                An. Fac. Cienc. Méd. (Asunción)
                EFACIM. Editorial de la Facultad de Ciencias Médicas - Universidad Nacional de Asunción (Asunción, Central, Paraguay )
                1816-8949
                December 2020
                : 53
                : 3
                : 189-194
                Affiliations
                [3] San Lorenzo Asunción orgnameUniversidad Nacional de Asunción orgdiv1Facultad de Ciencias Químicas orgdiv2Departamento de Farmacología Paraguay
                [1] San Lorenzo Asunción orgnameUniversidad Nacional de Asunción orgdiv1Dirección General de Investigación Científica y Tecnológica Paraguay
                [4] San Lorenzo Asunción orgnameUniversidad Nacional de Asunción orgdiv1Facultad de Ciencias Veterinarias orgdiv2Cátedra de Microbiología e Inmunología y Enfermedades Infecciosas y Contagiosas Paraguay
                [2] San Lorenzo Asunción orgnameUniversidad Nacional de Asunción orgdiv1Facultad de Ciencias Químicas orgdiv2Departamento de Aplicaciones Industriales Paraguay
                [5] San Lorenzo Asunción orgnameUniversidad Nacional de Asunción orgdiv1Facultad de Ciencias Médicas orgdiv2Cátedra de Neumología Paraguay
                Article
                S1816-89492020000300189 S1816-8949(20)05300300189
                10.18004/anales/2020.053.03.189
                f7456f7f-25ff-4dd7-9f07-d6dfdb0cd1fa

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 12 August 2020
                : 11 November 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 11, Pages: 6
                Product

                SciELO Paraguay

                Categories
                Tema de Interes

                risk.,contagio,riesgo.,cabinas,desinfectante,disinfectant,pandemia,SARS-CoV-2,pandemic,contagion,cabins

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