About: Are Cloth Masks a Substitute to Medical Masks in reducing transmission and contamination? A Systematic Review.

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About: Are Cloth Masks a Substitute to Medical Masks in reducing transmission and contamination? A Systematic Review. Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

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type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Are Cloth Masks a Substitute to Medical Masks in reducing transmission and contamination? A Systematic Review.
Creator	Normando, David Cardoso, Paula Flores-Mir, Carlos Medeiros, Rita Pandis, Nikolaos Santos, Milena Torres, Darlyane
Source	MedRxiv
abstract	During the COVID-19 pandemic the use of cloth masks has increased dramatically due to the shortage of medical masks. However, the efficiency of this material is controversial. We aimed to investigate the efficiency of cloth masks in reducing transmission and contamination by droplets and aerosols for the general population and healthcare workers. Electronic databases were searched without year or language restrictions. Clinical and laboratorial studies were included. The risk of bias (RoB) was assessed using an adapted quality checklist for laboratory-based studies. ROBINS-I tool and Cochrane RoB 2.0 were used to evaluate non-randomized (n-RCT) and randomized clinical trials (RCT), respectively. The quality of the evidence was assessed through GRADE tool. From the eleven studies selected, eight were laboratory-based studies, one non-randomized and one RCT supported by laboratory data. Between the evaluated fabrics only three presented a filtration efficiency >90%. Hybrid of cotton/chiffon (95%CI 95.2 to 98.8), hybrid of cotton/silk (95%CI 92.2 to 95.8) and cotton quilt (95%CI 94.2 to 97.8). A meta-analysis was not feasible due to a high methodological heterogeneity. The overall quality of evidence ranged from very low to moderate. Despite the lower efficiency compared to medical masks, laboratorial results may underestimate the efficiency of cloth masks in real life. Cloth mask efficiency is higher when made of hybrid fabrics (cotton/chiffon, cotton/silk) and cotton quilt, mainly with multiple layers. In pandemic situations any measure that can contribute to source control at the population level can have a beneficial effect. However, cloth masks are not recommended for healthcare workers.
has issue date	2020-07-29(xsd:dateTime)
bibo:doi	10.1101/2020.07.27.20154856
has license	medrxiv
sha1sum (hex)	32da36d08f71b65d0db9213a226a0127c469a6a1
schema:url	https://doi.org/10.1101/2020.07.27.20154856
resource representing a document's title	Are Cloth Masks a Substitute to Medical Masks in reducing transmission and contamination? A Systematic Review.
resource representing a document's body	covid:32da36d08f71b65d0db9213a226a0127c469a6a1#body_text
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