Tristan A. Cogan
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View article: Ambient carbon dioxide concentration correlates with SARS-CoV-2 aerostability and infection risk
Ambient carbon dioxide concentration correlates with SARS-CoV-2 aerostability and infection risk Open
View article: Ambient Carbon Dioxide Concentration Correlates with SARS-CoV-2 Aerostability and Infection Risk
Ambient Carbon Dioxide Concentration Correlates with SARS-CoV-2 Aerostability and Infection Risk Open
An improved understanding of the underlying physicochemical properties of respiratory aerosol that influence viral infectivity may open new avenues to mitigate the transmission of respiratory diseases such as COVID-19. Previous studies hav…
View article: Issue Information
Issue Information Open
Correction to "Rebamipide potentially mitigates methotrexate
View article: Differences in airborne stability of SARS-CoV-2 variants of concern is impacted by alkalinity of surrogates of respiratory aerosol
Differences in airborne stability of SARS-CoV-2 variants of concern is impacted by alkalinity of surrogates of respiratory aerosol Open
The mechanistic factors hypothesized to be key drivers for the loss of infectivity of viruses in the aerosol phase often remain speculative. Using a next-generation bioaerosol technology, we report measurements of the aero-stability of sev…
View article: Chitosan-coated carboxylic acids show antimicrobial activity against antibiotic-resistant Gram-negative and positive pathogens
Chitosan-coated carboxylic acids show antimicrobial activity against antibiotic-resistant Gram-negative and positive pathogens Open
Antibiotic resistance in bacteria is suggested to be the greatest risk to human health, but new agents are not being brought to market as the rapid evolution of resistance to them means that drug development costs cannot be recouped. Fatty…
View article: Reply to Klein et al.: The importance of aerosol pH for airborne respiratory virus transmission
Reply to Klein et al.: The importance of aerosol pH for airborne respiratory virus transmission Open
View article: Mucin Transiently Sustains Coronavirus Infectivity through Heterogenous Changes in Phase Morphology of Evaporating Aerosol
Mucin Transiently Sustains Coronavirus Infectivity through Heterogenous Changes in Phase Morphology of Evaporating Aerosol Open
Respiratory pathogens can be spread though the transmission of aerosolised expiratory secretions in the form of droplets or particulates. Understanding the fundamental aerosol parameters that govern how such pathogens survive whilst airbor…
View article: The dynamics of SARS-CoV-2 infectivity with changes in aerosol microenvironment
The dynamics of SARS-CoV-2 infectivity with changes in aerosol microenvironment Open
Understanding the factors that influence the airborne survival of viruses such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in aerosols is important for identifying routes of transmission and the value of various mitigat…
View article: Effects of nest-box environment on fledgling success rate and pathogen load
Effects of nest-box environment on fledgling success rate and pathogen load Open
Nest boxes have been used for many decades as tools for conservation and to study avian population dynamics. Plastic is increasingly used as a material for nest boxes, but no studies have investigated effects of this different material. Tw…
View article: Using a non‐invasive technique to identify suspected microplastics in grey seals ( <i>Halichoerus grypus</i> ) living in the western North Sea
Using a non‐invasive technique to identify suspected microplastics in grey seals ( <i>Halichoerus grypus</i> ) living in the western North Sea Open
Background Plastic pollution is of growing concern in marine ecosystems worldwide. Specifically, microplastics (<5 mm) may interact with a variety of biota with the potential to cause harm to organism health. Studies investigating micropla…
View article: Evidence that faecal carriage of resistant Escherichia coli by 16-week-old dogs in the United Kingdom is associated with raw feeding
Evidence that faecal carriage of resistant Escherichia coli by 16-week-old dogs in the United Kingdom is associated with raw feeding Open
We report a survey (August 2017 to March 2018) and risk factor analysis of faecal carriage of antibacterial-resistant (ABR) Escherichia coli in 223 16-week-old dogs in the United Kingdom. Raw feeding was associated with the presence…
View article: The Dynamics of SARS-CoV-2 Infectivity with Changes in Aerosol Microenvironment
The Dynamics of SARS-CoV-2 Infectivity with Changes in Aerosol Microenvironment Open
Understanding the factors that influence the airborne survival of viruses such as SARS-CoV-2 in aerosols is important for identifying routes of transmission and the value of various mitigation strategies for preventing transmission. We pre…
View article: Factors influencing the detection of antibacterial-resistant Escherichia coli in faecal samples from individual cattle
Factors influencing the detection of antibacterial-resistant Escherichia coli in faecal samples from individual cattle Open
Aims To investigate whether on-farm antibacterial usage (ABU), environmental antibacterial-resistant (ABR) Escherichia coli prevalence, sampling and sample handling methodologies are associated with ABR E. coli positivity in individual fae…
View article: Factors Influencing the Detection of Antibacterial Resistant <i>Escherichia coli</i> in Faecal Samples from Individual Cattle
Factors Influencing the Detection of Antibacterial Resistant <i>Escherichia coli</i> in Faecal Samples from Individual Cattle Open
Aims To investigate whether on-farm antibacterial usage (ABU), environmental antibacterial resistant (ABR) Escherichia coli prevalence, and sampling and sample handling methodologies are associated with ABR E. coli positivity in individual…
View article: Measuring stability of virus in aerosols under varying environmental conditions
Measuring stability of virus in aerosols under varying environmental conditions Open
Copyright © 2021 American Association for Aerosol Research
View article: Limited phylogenetic overlap between fluoroquinolone-resistant <i>Escherichia coli</i> isolated on dairy farms and those causing bacteriuria in humans living in the same geographical region
Limited phylogenetic overlap between fluoroquinolone-resistant <i>Escherichia coli</i> isolated on dairy farms and those causing bacteriuria in humans living in the same geographical region Open
Background Our primary aim was to test whether cattle-associated fluoroquinolone-resistant (FQ-R) Escherichia coli found on dairy farms are closely phylogenetically related to those causing bacteriuria in humans living in the same 50 × 50 …
View article: Characterisation of Dichelobacter nodosus on Misshapen and Damaged Ovine Feet: A Longitudinal Study of Four UK Sheep Flocks
Characterisation of Dichelobacter nodosus on Misshapen and Damaged Ovine Feet: A Longitudinal Study of Four UK Sheep Flocks Open
Dichelobacter nodosus is the causal agent of ovine footrot, a contagious disease of welfare and economic concern worldwide. Damaged feet may be subclinical carriers of D. nodosus and covertly spread infection. Accordingly, we evaluated the…
View article: Limited Phylogenetic Overlap Between Fluoroquinolone-Resistant Escherichia coli Isolated on Dairy Farms and those Causing Bacteriuria in Humans Living in the Same Geographical Region
Limited Phylogenetic Overlap Between Fluoroquinolone-Resistant Escherichia coli Isolated on Dairy Farms and those Causing Bacteriuria in Humans Living in the Same Geographical Region Open
Synopsis Background Our primary aim was to test whether cattle-associated fluoroquinolone-resistant (FQ-R) Escherichia coli found on dairy farms were a significant cause of bacteriuria in humans living in the same 50 × 50 km geographical r…
View article: Adult porcine (<i>Sus scrofa</i>) derived inner ear cells possessing multipotent stem/progenitor cell characteristics in<i>in vitro</i>cultures
Adult porcine (<i>Sus scrofa</i>) derived inner ear cells possessing multipotent stem/progenitor cell characteristics in<i>in vitro</i>cultures Open
The human inner ear compared with that of other mammalian species is very complex. Although the mouse’s cochlea is frequently studied the mouse’s inner ear continues to develop postnatally whilst the human inner ear is fully developed by t…
View article: Investigating Microplastic Presence Amongst Grey Seals (Halichoerus Grypus) of the North Sea
Investigating Microplastic Presence Amongst Grey Seals (Halichoerus Grypus) of the North Sea Open
Plastic pollution is of increasing concern to marine ecosystems worldwide. Specifically, microplastics (<5mm) may interact with a variety of biota with potential to cause harm to organism health. Studies concerning microplastics are increa…
View article: Reduced Antibacterial Drug Resistance and <i>bla</i> <sub>CTX-M</sub> β-Lactamase Gene Carriage in Cattle-Associated Escherichia coli at Low Temperatures, at Sites Dominated by Older Animals, and on Pastureland: Implications for Surveillance
Reduced Antibacterial Drug Resistance and <i>bla</i> <sub>CTX-M</sub> β-Lactamase Gene Carriage in Cattle-Associated Escherichia coli at Low Temperatures, at Sites Dominated by Older Animals, and on Pastureland: Implications for Surveillance Open
Antibacterial resistance poses a significant threat to human and animal health and global food security. Surveillance for resistance on farms is important for many reasons, including tracking impacts of interventions aimed at reducing the …
View article: Molecular Epidemiology of Escherichia coli Producing CTX-M and pAmpC β-Lactamases from Dairy Farms Identifies a Dominant Plasmid Encoding CTX-M-32 but No Evidence for Transmission to Humans in the Same Geographical Region
Molecular Epidemiology of Escherichia coli Producing CTX-M and pAmpC β-Lactamases from Dairy Farms Identifies a Dominant Plasmid Encoding CTX-M-32 but No Evidence for Transmission to Humans in the Same Geographical Region Open
Third-generation cephalosporins (3GCs) are critically important antibacterials, and 3GC resistance (3GC-R) threatens human health, particularly in the context of opportunistic pathogens such as Escherichia coli . There is some evidence for…
View article: Enrichment of Lactic Acid Silage Bacteria with Selenium by Growing Cultures in Modified MRS Broth Supplemented with Sodium Selenite
Enrichment of Lactic Acid Silage Bacteria with Selenium by Growing Cultures in Modified MRS Broth Supplemented with Sodium Selenite Open
Selenium (Se) is a trace element essential for normal cellular function, which has been linked with reduced risk of cancer, cardiovascular disease, cognitive decline and thyroid disease in humans. Se deficiency in livestock is associated w…
View article: Molecular epidemiology of <i>Escherichia coli</i> producing CTX-M and plasmid AmpC-type β-lactamases from dairy farms identifies a dominant plasmid encoding CTX-M-32 but no evidence for transmission to humans in the same geographical region
Molecular epidemiology of <i>Escherichia coli</i> producing CTX-M and plasmid AmpC-type β-lactamases from dairy farms identifies a dominant plasmid encoding CTX-M-32 but no evidence for transmission to humans in the same geographical region Open
Third-generation cephalosporin resistance (3GC-R) in Escherichia coli is a rising problem in human and farmed animal populations. We conducted whole genome sequencing analysis of 138 representative 3GC-R isolates previously collected from …
View article: Reduced antibacterial drug resistance and <i>bla</i><sub>CTX-M</sub> β-lactamase gene carriage in cattle-associated <i>Escherichia coli</i> at low temperatures, at sites dominated by older animals and on pastureland: implications for surveillance
Reduced antibacterial drug resistance and <i>bla</i><sub>CTX-M</sub> β-lactamase gene carriage in cattle-associated <i>Escherichia coli</i> at low temperatures, at sites dominated by older animals and on pastureland: implications for surveillance Open
Little is known about the drivers of critically important antibacterial resistance in species with zoonotic potential present on farms (e.g. CTX-M □-lactamase-positive Escherichia coli ). Here, we collected samples, monthly over a two-year…
View article: The Mycotoxin Deoxynivalenol Significantly Alters the Function and Metabolism of Bovine Kidney Epithelial Cells In Vitro
The Mycotoxin Deoxynivalenol Significantly Alters the Function and Metabolism of Bovine Kidney Epithelial Cells In Vitro Open
Bovine mycotoxicosis is a disorder caused by the ingestion of fungal toxins. It is associated with chronic signs, such as reduced growth rate and milk yield, and causes significant economic cost to the dairy industry. The mycotoxins deoxyn…
View article: Domestication of Campylobacter jejuni NCTC 11168
Domestication of Campylobacter jejuni NCTC 11168 Open
Reference and type strains of well-known bacteria have been a cornerstone of microbiology research for decades. The sharing of well-characterized isolates among laboratories has run in parallel with research efforts and enhanced the reprod…
View article: Assessing the ability of silage lactic acid bacteria to incorporate and transform inorganic selenium within laboratory scale silos
Assessing the ability of silage lactic acid bacteria to incorporate and transform inorganic selenium within laboratory scale silos Open
View article: Domestication of<i>Campylobacter jejuni</i>NCTC 11168
Domestication of<i>Campylobacter jejuni</i>NCTC 11168 Open
Reference and type strains of well-known bacteria have been a cornerstone of microbiology research for decades. The sharing of well-characterised isolates among laboratories has parallelised research efforts and enhanced the reproducibilit…
View article: Patterns of antimicrobial resistance in canine wound infections from two large scale electronic datasets
Patterns of antimicrobial resistance in canine wound infections from two large scale electronic datasets Open
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