The article, from PROTECT NCS Theme 2 researchers, published in the Indoor Environments journal, examines the effect of ventilation rate on exposure to SARS-CoV-2 in a mechanically ventilated room with mixing ventilation. Related Contact Us...
Category: Theme 2: Transmission modelling
Environmental data monitoring and infection risks in UK care-homes in the context of COVID-19
The COVID-19 pandemic drew attention to the critical role of building ventilation as a measure for controlling infection transmission. With the substantial number of COVID-19 outbreaks in care homes worldwide, the effectiveness of ventilation is an important...
Understanding SARS-CoV-2 transmission: Computational fluid dynamics modelling of respiratory particles
This report from Theme 2 researchers on the PROTECT NCS, describes the development and use of a mathematical Computational Fluid Dynamics (CFD) model of respiratory droplet dispersion. The aim of the study was to help provide a better understanding of the physics of...
The dynamics of SARS-CoV-2 infectivity with changes in aerosol microenvironment
The aerosol microenvironment is dynamic, exposing pathogens, such as severe acute respiratory syndrome coronavirus 2 virus, when exhaled in respiratory aerosol to extreme conditions of solute concentration, pH, and evaporative cooling. Yet surviving this environment...
A mathematical model for assessing transient airborne infection risks in a multi-zone hospital ward.
Airborne transmission is an infection route for many pathogens such as Tuberculosis (TB), Influenza and more recently SARS-CoV-2 (the virus that causes COVID-19). With respiratory diseases already being a major contributor to pressure on hospital systems such as the...
Ventilation matters – why clean air is vital to health
The National Engineering Policy Centre have produced a new interactive infographic - Ventilation Matters - why clean air is vital to health - exploring why effective ventilation indoors is important for enabling the health and wellbeing of people. Based on the NEPC’s...
Performance measurement of capture mask, including characterisation of full operating performance
This report from theme 2 researchers of the PROTECT NCS, details experimental studies designed to investigate the performance of a new facemask design with impactor plate capabilities for segregating aerosols and droplets by size. This includes collecting and...
Multi-compartment Within Host Model
This report is an extension of the work of PROTECT Phase 2 and covers the work done under phase 3 of PROTECT, in which researchers from theme 2 of the PROTECT NCS, developed simplified models and introduced two different viral mechanisms anddose-response models. In...
SARS-CoV-2 detected on exhaled breath by facemask sampling predicts how likely someone is to transmit to their household better than upper respiratory tract swabs.
People who test positive for COVID-19 and breathe out virus are more likely to infect their household members than via virus sampled in their nose and throatPeople are most likely to breathe out high amounts of virus early on when they are infectedIf participants were...
Importance of ventilation as a means of infection control in care homes.
As winter continues and energy costs rise, it is tempting to try and keep residents warm and fuel costs down by hunkering down until the weather gets warmer. But keeping all the windows and doors shut may not be the best idea: all homes need ventilation and care homes...
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