Indoor airborne risk assessment in the context of SARS-CoV-2

Indoor airborne risk assessment in the context of SARS-CoV-2 PDF Author: World Health Organization
Publisher: World Health Organization
ISBN: 9240090576
Category : Medical
Languages : en
Pages : 83

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Book Description

Indoor airborne risk assessment in the context of SARS-CoV-2

Indoor airborne risk assessment in the context of SARS-CoV-2 PDF Author: World Health Organization
Publisher: World Health Organization
ISBN: 9240090576
Category : Medical
Languages : en
Pages : 83

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Book Description


A Coupled Experimental and Statistical Approach for an Assessment of SARS-CoV-2 Infection Risk at Indoor Event Locations

A Coupled Experimental and Statistical Approach for an Assessment of SARS-CoV-2 Infection Risk at Indoor Event Locations PDF Author: Lukas Siebler
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
Abstract: Indoor event locations are particularly affected by the SARS-CoV-2 pandemic. At large venues, only incomplete risk assessments exist, whereby no suitable measures can be derived. In this study, a physical and data-driven statistical model for a comprehensive infection risk assessment has been developed. At venues displacement ventilation concepts are often implemented. Here simplified theoretical assumptions fail for the prediction of relevant airflows for airborne transmission processes. Thus, with locally resolving trace gas measurements infection risks are computed more detailed. Coupled with epidemiological data such as incidences, vaccination rates, test sensitivities, and audience characteristics such as masks and age distribution, predictions of new infections (mean), situational R-values (mean), and individual risks on- and off-seat can be achieved for the first time. Using the Stuttgart State Opera as an example, the functioning of the model and its plausibility are tested and a sensitivity analysis is performed with regard to masks and tests. Besides a reference scenario on 2022-11-29, a maximum safety scenario with an obligation of FFP2 masks and rapid antigen tests as well as a minimum safety scenario without masks and tests are investigated. For these scenarios the new infections (mean) are 10.6, 0.25 and 13.0, respectively. The situational R-values (mean) - number of new infections caused by a single infectious person in a certain situation - are 2.75, 0.32 and 3.39, respectively. Besides these results a clustered consideration divided by age, masks and whether infections occur on-seat or off-seat are presented. In conclusion this provides an instrument that can enable policymakers and operators to take appropriate measures to control pandemics despite ongoing mass gathering events

Quantitative Microbial Risk Assessment

Quantitative Microbial Risk Assessment PDF Author: Charles N. Haas
Publisher: John Wiley & Sons
ISBN: 1118910028
Category : Technology & Engineering
Languages : en
Pages : 439

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Book Description
Provides the latest QMRA methodologies to determine infection risk cause by either accidental microbial infections or deliberate infections caused by terrorism • Reviews the latest methodologies to quantify at every step of the microbial exposure pathways, from the first release of a pathogen to the actual human infection • Provides techniques on how to gather information, on how each microorganism moves through the environment, how to determine their survival rates on various media, and how people are exposed to the microorganism • Explains how QMRA can be used as a tool to measure the impact of interventions and identify the best policies and practices to protect public health and safety • Includes new information on genetic methods • Techniques use to develop risk models for drinking water, groundwater, recreational water, food and pathogens in the indoor environment

Natural Ventilation for Infection Control in Health-care Settings

Natural Ventilation for Infection Control in Health-care Settings PDF Author: Y. Chartier
Publisher: World Health Organization
ISBN: 9241547855
Category : Medical
Languages : en
Pages : 132

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Book Description
This guideline defines ventilation and then natural ventilation. It explores the design requirements for natural ventilation in the context of infection control, describing the basic principles of design, construction, operation and maintenance for an effective natural ventilation system to control infection in health-care settings.

Global technical consultation report on proposed terminology for pathogens that transmit through the air

Global technical consultation report on proposed terminology for pathogens that transmit through the air PDF Author: World Health Organization
Publisher: World Health Organization
ISBN: 9240089187
Category : Medical
Languages : en
Pages : 52

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Book Description


Reopening K-12 Schools During the COVID-19 Pandemic

Reopening K-12 Schools During the COVID-19 Pandemic PDF Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309680077
Category : Education
Languages : en
Pages : 115

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Book Description
The COVID-19 pandemic has presented unprecedented challenges to the nation's K-12 education system. The rush to slow the spread of the virus led to closures of schools across the country, with little time to ensure continuity of instruction or to create a framework for deciding when and how to reopen schools. States, districts, and schools are now grappling with the complex and high-stakes questions of whether to reopen school buildings and how to operate them safely if they do reopen. These decisions need to be informed by the most up-to-date evidence about the SARS-CoV-2 virus that causes COVID-19; about the impacts of school closures on students and families; and about the complexities of operating school buildings as the pandemic persists. Reopening K-12 Schools During the COVID-19 Pandemic: Prioritizing Health, Equity, and Communities provides guidance on the reopening and operation of elementary and secondary schools for the 2020-2021 school year. The recommendations of this report are designed to help districts and schools successfully navigate the complex decisions around reopening school buildings, keeping them open, and operating them safely.

Applied Computer Sciences in Engineering

Applied Computer Sciences in Engineering PDF Author: Juan Carlos Figueroa-García
Publisher: Springer Nature
ISBN: 3030867021
Category : Computers
Languages : en
Pages : 534

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Book Description
This volume constitutes the refereed proceedings of the 8th Workshop on Engineering Applications, WEA 2021, held in Medellín, Colombia, in October 2021. Due to the COVID-19 pandemic the conference was held in a hybrid mode. The 33 revised full papers and 11 short papers presented in this volume were carefully reviewed and selected from 127 submissions. The papers are organized in the following topical sections: computational intelligence; bioengineering; Internet of Things (IoT); optimization and operations research; engineering applications.

Aerosols Handbook

Aerosols Handbook PDF Author: Lev S. Ruzer
Publisher: CRC Press
ISBN: 0203493184
Category : Nature
Languages : en
Pages : 728

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Book Description
As more attention is dedicated to understanding the occupational health risks associated with the industrial manufacture and use of nanotechnology, Aerosols Handbook: Measurement, Dosimetry, and Health Effects is a timely presentation of time-tested research in the field of aerosol science. The book covers a multitude of topics in indoor, outdoor,

Air Pollution

Air Pollution PDF Author: Christian Seigneur
Publisher: Cambridge University Press
ISBN: 1108481639
Category : Medical
Languages : en
Pages : 375

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Book Description
Complete coverage of air pollution from its sources to its health and environmental impacts, for advanced students and researchers.

Coronaviruses with Special Emphasis on First Insights Concerning SARS

Coronaviruses with Special Emphasis on First Insights Concerning SARS PDF Author: Axel Schmidt
Publisher: Springer Science & Business Media
ISBN: 9783764364625
Category : Medical
Languages : en
Pages : 258

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Book Description
-SARS has received much attention and coverage by the media and has a high impact on the public making this a hot research topic for scientists. -