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Iconographies supplémentaires de l'article : Factors involved in the aerosol transmission of infection and control of ventilation in healthcare premises

TLDR
Recommendations are made to improve the control of aerosol-transmitted infections in hospitals as well as in the design and construction of future isolation facilities.
Abstract
Summary The epidemics of severe acute respiratory syndrome (SARS) in 2003 highlighted both short- and long-range transmission routes, i.e. between infected patients and healthcare workers, and between distant locations. With other infections such as tuberculosis, measles and chickenpox, the concept of aerosol transmission is so well accepted that isolation of such patients is the norm. With current concerns about a possible approaching influenza pandemic, the control of transmission via infectious air has become more important. Therefore, the aim of this review is to describe the factors involved in: (1) the generation of an infectious aerosol, (2) the transmission of infectious droplets or droplet nuclei from this aerosol, and (3) the potential for inhalation of such droplets or droplet nuclei by a susceptible host. On this basis, recommendations are made to improve the control of aerosol-transmitted infections in hospitals as well as in the design and construction of future isolation facilities.

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Citations
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A Review of the Research Literature on Evidence-Based Healthcare Design

TL;DR: This review found a growing body of rigorous studies to guide healthcare design, especially with respect to reducing the frequency of hospital-acquired infections and the state of knowledge of evidence-based healthcare design has grown rapidly in recent years.
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Transmission of COVID-19 virus by droplets and aerosols: A critical review on the unresolved dichotomy.

TL;DR: It is demonstrated that the nosocomial transmission by airborne SARS-CoV-2 viral-laden aerosols in healthcare facilities may be plausible and clearly defined, science-based administrative, clinical, and physical measures are of paramount importance to eradicate the COVID-19 pandemic from the world.
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Violent expiratory events: on coughing and sneezing

TL;DR: In this paper, the authors present the results of a combined experimental and theoretical investigation of the fluid dynamics of such violent expiratory events, which reveals that such flows are multiphase turbulent buoyant clouds with suspended droplets of various sizes.
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Recognition of aerosol transmission of infectious agents: a commentary

TL;DR: This review considers the commonly used term of ‘aerosol transmission’ in the context of some infectious agents that are well-recognized to be transmissible via the airborne route, and discusses other agents, like influenza virus, where the potential for airborne transmission is much more dependent on various host, viral and environmental factors, and where its potential for aerosol transmission may be underestimated.

The fluid mechanics of natural ventilation

TL;DR: In this paper, two forms of ventilation are discussed: mixing ventilation and displacement ventilation, where the interior is at an approximately uniform temperature and there is strong internal stratification, respectively, and the effects of wind on them are examined.
References
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TL;DR: Exhaled air dispersion from high-flow nasal cannula (HFNC) and CPAP is limited provided there is good mask interface fitting, however, exhaled air leakage to 620 mm laterally occurs when the connection between HFNC and the interface tube becomes loose.
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Epidemiology of antibiotic-associated colitis: Isolation of clostridium difficile from the hospital environment☆

TL;DR: Using selective media, it was found that contamination with this organism was common in the environment of patients in the hospital with the disease and was often found on floors, hoppers, toilets, bedding, mops, scales and furniture as mentioned in this paper.