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Article: Hand hygiene and surface cleaning should be paired for prevention of fomite transmission

TitleHand hygiene and surface cleaning should be paired for prevention of fomite transmission
Authors
Keywordsfomite transmission
hand hygiene
hygiene criterion
infection control
surface cleaning
Issue Date2020
PublisherWiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/INA
Citation
Indoor Air, 2020, v. 30 n. 1, p. 49-59 How to Cite?
AbstractTouching contaminated surfaces might lead to the spread of pathogens, that is, the fomite transmission route. Although hand‐ and surface‐hygiene practices are potentially important non‐pharmaceutical interventions for the fomite route, the two interventions have been mostly studied separately in the literature. In this study, we develop a new conceptual model based on the law of mass action, analyze the temporal diffusion of contaminated surfaces and hands, and verify the model with simulations in an assumed norovirus outbreak in a buffet restaurant. A quantitative hygiene criterion is developed for the required frequency of surface disinfection and hand hygiene to control the fomite transmission in indoor environments. To eliminate surface contaminations, the product of pathogen‐removal rates (including hygiene and natural death) on hands and surfaces must be no smaller than that of the human hand and surface contact frequency (ie, the net removal product must be non‐negative). When the net removal product is negative, the number of contaminated surfaces and hands would show a logistic growth trend and finally approach the equilibrium. Our approach sheds light into how to optimize the combined use of hand hygiene and environmental decontamination for the best effectiveness under different settings.
Persistent Identifierhttp://hdl.handle.net/10722/283682
ISSN
2019 Impact Factor: 4.739
2015 SCImago Journal Rankings: 1.666

 

DC FieldValueLanguage
dc.contributor.authorLei, H-
dc.contributor.authorXiao, S-
dc.contributor.authorCowling, BJ-
dc.contributor.authorLi, Y-
dc.date.accessioned2020-07-03T08:22:38Z-
dc.date.available2020-07-03T08:22:38Z-
dc.date.issued2020-
dc.identifier.citationIndoor Air, 2020, v. 30 n. 1, p. 49-59-
dc.identifier.issn0905-6947-
dc.identifier.urihttp://hdl.handle.net/10722/283682-
dc.description.abstractTouching contaminated surfaces might lead to the spread of pathogens, that is, the fomite transmission route. Although hand‐ and surface‐hygiene practices are potentially important non‐pharmaceutical interventions for the fomite route, the two interventions have been mostly studied separately in the literature. In this study, we develop a new conceptual model based on the law of mass action, analyze the temporal diffusion of contaminated surfaces and hands, and verify the model with simulations in an assumed norovirus outbreak in a buffet restaurant. A quantitative hygiene criterion is developed for the required frequency of surface disinfection and hand hygiene to control the fomite transmission in indoor environments. To eliminate surface contaminations, the product of pathogen‐removal rates (including hygiene and natural death) on hands and surfaces must be no smaller than that of the human hand and surface contact frequency (ie, the net removal product must be non‐negative). When the net removal product is negative, the number of contaminated surfaces and hands would show a logistic growth trend and finally approach the equilibrium. Our approach sheds light into how to optimize the combined use of hand hygiene and environmental decontamination for the best effectiveness under different settings.-
dc.languageeng-
dc.publisherWiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/INA-
dc.relation.ispartofIndoor Air-
dc.rightsPreprint This is the pre-peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. Postprint This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.-
dc.subjectfomite transmission-
dc.subjecthand hygiene-
dc.subjecthygiene criterion-
dc.subjectinfection control-
dc.subjectsurface cleaning-
dc.titleHand hygiene and surface cleaning should be paired for prevention of fomite transmission-
dc.typeArticle-
dc.identifier.emailXiao, S: xiaosl@hku.hk-
dc.identifier.emailCowling, BJ: bcowling@hku.hk-
dc.identifier.emailLi, Y: liyg@hku.hk-
dc.identifier.authorityCowling, BJ=rp01326-
dc.identifier.authorityLi, Y=rp00151-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/ina.12606-
dc.identifier.pmid31545534-
dc.identifier.scopuseid_2-s2.0-85074033558-
dc.identifier.hkuros310742-
dc.identifier.volume30-
dc.identifier.issue1-
dc.identifier.spage49-
dc.identifier.epage59-
dc.publisher.placeDenmark-

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