Author | Mares-Guia, Maria Angélica Monteiro de Mello | |
Author | Paiva, Anne Aline Pereira de | |
Author | Mello, Vinicius Motta | |
Author | Eller, Cristiane M. | |
Author | Sálvio, Andreza Lemos | |
Author | Nascimento, Felipe F. | |
Author | Silva, Emanuelle S. R. F. | |
Author | Campos, Vinicius Tadeu Martins Guerra | |
Author | Mendes, Ygara da Silva | |
Author | Lemos, Elba Regina Sampaio de | |
Author | Sousa Jr., Ivanildo P. | |
Author | Horta, Marco Aurélio Pereira | |
Access date | 2022-08-17T11:34:55Z | |
Available date | 2022-08-17T11:34:55Z | |
Document date | 2022 | |
Citation | MARES-GUIA, Maria Angélica Monteiro de Mello et al. Effectiveness of Household Disinfection Techniques to Remove SARS-Cov-2 from Cloth Masks. Preprints, p. 1 - 16, July 2022. | pt_BR |
URI | https://www.arca.fiocruz.br/handle/icict/54675 | |
Language | eng | pt_BR |
Publisher | Preprints.org | pt_BR |
Rights | open access | pt_BR |
Subject in Portuguese | SARS-CoV-2 | pt_BR |
Subject in Portuguese | COVID-19 | pt_BR |
Subject in Portuguese | Reutilize máscaras de tecido | pt_BR |
Subject in Portuguese | Desinfecção | pt_BR |
Title | Effectiveness of Household Disinfection Techniques to Remove SARS-Cov-2 from Cloth Masks | pt_BR |
Type | Preprint | pt_BR |
Abstract | To assess the efficacy of washing cloth masks, we simulated SARS-CoV-2 contamination
in tricoline fabric and tested decontaminants to reduce viral particles. Viral suspensions using two
variants (B.1.1.28 and P.1) were inoculated in these fabrics, and the inactivation kinetics were evaluated
after washing with various household disinfection products (Soap powder, Lysoform®, Hypochlorite
sodium and 70% Alcohol), rinse numbers, and exposure times. Afterward, the fabrics
were washed in sterile water, viral RNA extracted and amplified using RT-qPCR. Finally, viral replication
in cell cultures was examined. Our findings show that all biocidal treatments successfully
disinfected the tissue tested. Some products showed less reduction in viral loads, Soap powder (1.60
x 104, 1.04 x 103), Soap powder and Lysoform® (1.60 x 104, 1.04 x 103) and Alcohol 70% (1.02 x 103,
5.91 x 101) respectively. However, when sodium hypochlorite was used, this reduction was significantly
increased (viral inactivation in 100% of the washes). After the first wash, the reduction of
viral particles was greater for the P.1 variant than for the B.1.1.28 variant (W = 51759, p 0.05). In
conclusion the sodium hypochlorite role on cloth masks disinfection may also have implications for
future health emergencies as well as recommended by WHO. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Flavivírus. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Flavivírus. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hepatites Virais. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Centro Analítico COVID-19. Rio de Janeiro, RJ, Brasil / Fundação Oswaldo Cruz. Biosafety Level 3 Facility (BSL-3). Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Centro Analítico COVID-19. Rio de Janeiro, RJ, Brasil | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Centro Analítico COVID-19. Rio de Janeiro, RJ, Brasil | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Centro Analítico COVID-19. Rio de Janeiro, RJ, Brasil | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Flavivírus. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Biomanguinhos. Laboratório de Tecnologia Virológica. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Hantaviroses e Rickettsioses. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Enterovírus. Rio de Janeiro, RJ, Brasil. | pt_BR |
Affilliation | Fundação Oswaldo Cruz. Centro Analítico COVID-19. Rio de Janeiro, RJ, Brasil / Fundação Oswaldo Cruz. Biosafety Level 3 Facility (BSL-3). Rio de Janeiro, RJ, Brasil. | pt_BR |
Subject | SARS-CoV-2 | pt_BR |
Subject | COVID-19 | pt_BR |
Subject | Reuse fabric masks | pt_BR |
Subject | Disinfection | pt_BR |