Olivia Boyd
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View article: Lineage frequency time series reveal elevated levels of genetic drift in SARS-CoV-2 transmission in England
Lineage frequency time series reveal elevated levels of genetic drift in SARS-CoV-2 transmission in England Open
Genetic drift in infectious disease transmission results from randomness of transmission and host recovery or death. The strength of genetic drift for SARS-CoV-2 transmission is expected to be high due to high levels of superspreading, and…
View article: Lineage frequency time series reveal elevated levels of genetic drift in SARS-CoV-2 transmission in England
Lineage frequency time series reveal elevated levels of genetic drift in SARS-CoV-2 transmission in England Open
Genetic drift in infectious disease transmission results from randomness of transmission and host recovery or death. The strength of genetic drift for SARS-CoV-2 transmission is expected to be high due to high levels of superspreading, and…
View article: Genetic evidence for the association between COVID-19 epidemic severity and timing of non-pharmaceutical interventions
Genetic evidence for the association between COVID-19 epidemic severity and timing of non-pharmaceutical interventions Open
Unprecedented public health interventions including travel restrictions and national lockdowns have been implemented to stem the COVID-19 epidemic, but the effectiveness of non-pharmaceutical interventions is still debated. We carried out …
View article: Transmission of SARS-CoV-2 Lineage B.1.1.7 in England: Insights from linking epidemiological and genetic data
Transmission of SARS-CoV-2 Lineage B.1.1.7 in England: Insights from linking epidemiological and genetic data Open
The SARS-CoV-2 lineage B.1.1.7, now designated Variant of Concern 202012/01 (VOC) by Public Health England, originated in the UK in late Summer to early Autumn 2020. We examine epidemiological evidence for this VOC having a transmission ad…
View article: Genomic epidemiology of a densely sampled COVID-19 outbreak in China
Genomic epidemiology of a densely sampled COVID-19 outbreak in China Open
Analysis of genetic sequence data from the SARS-CoV-2 pandemic can provide insights into epidemic origins, worldwide dispersal, and epidemiological history. With few exceptions, genomic epidemiological analysis has focused on geographicall…
View article: Database of epidemic trends and control measures during the first wave of COVID-19 in mainland China
Database of epidemic trends and control measures during the first wave of COVID-19 in mainland China Open
Aggregated indicators of case notifications and severity distributions are essential for monitoring an epidemic. A publicly available database containing these indicators and information regarding control measures is a useful resource for …
View article: Evidence of initial success for China exiting COVID-19 social distancing policy after achieving containment
Evidence of initial success for China exiting COVID-19 social distancing policy after achieving containment Open
Background: The COVID-19 epidemic was declared a Global Pandemic by WHO on 11 March 2020. By 24 March 2020, over 440,000 cases and almost 20,000 deaths had been reported worldwide. In response to the fast-growing epidemic, which began in t…
View article: COVID-19 epidemic severity is associated with timing of non-pharmaceutical interventions
COVID-19 epidemic severity is associated with timing of non-pharmaceutical interventions Open
Background Unprecedented public health interventions including travel restrictions and national lockdowns have been implemented to stem the COVID-19 epidemic, but the effectiveness of non-pharmaceutical interventions is still debated. Inte…
View article: Report 31: Estimating the burden of COVID-19 in Damascus, Syria: an analysis of novel data sources to infer mortality under-ascertainment
Report 31: Estimating the burden of COVID-19 in Damascus, Syria: an analysis of novel data sources to infer mortality under-ascertainment Open
The COVID-19 pandemic has resulted in substantial mortality worldwide. However, to date, countries in the Middle East and Africa have reported substantially lower mortality rates than in Europe and the Americas. One hypothesis is that thes…
View article: SARS-CoV-2 infection prevalence on repatriation flights from Wuhan City, China
SARS-CoV-2 infection prevalence on repatriation flights from Wuhan City, China Open
We estimated SARS-CoV-2 infection prevalence in cohorts of repatriated citizens from Wuhan to be 0.44% (95% CI: 0.19%–1.03%). Although not representative of the wider population we believe these estimates are helpful in providing a conserv…
View article: The impact of COVID-19 and strategies for mitigation and suppression in low- and middle-income countries
The impact of COVID-19 and strategies for mitigation and suppression in low- and middle-income countries Open
Global prospects for COVID-19 control Lower-income countries have recognized the potential impact of coronavirus disease 2019 (COVID-19) from observing ongoing epidemics. Many have intervened quickly and early with measures to slow viral t…
View article: Report 25: Response to COVID-19 in South Korea and implications for lifting stringent interventions
Report 25: Response to COVID-19 in South Korea and implications for lifting stringent interventions Open
While South Korea experienced a sharp growth in COVID-19 cases early in the global pandemic, it has since rapidly reduced rates of infection and now maintains low numbers of daily new cases. Despite using less stringent “lockdown” measures…
View article: Evidence of initial success for China exiting COVID-19 social distancing policy after achieving containment
Evidence of initial success for China exiting COVID-19 social distancing policy after achieving containment Open
Background : The COVID-19 epidemic was declared a Global Pandemic by WHO on 11 March 2020. By 24 March 2020, over 440,000 cases and almost 20,000 deaths had been reported worldwide. In response to the fast-growing epidemic, which began in…
View article: Report 16: Role of testing in COVID-19 control
Report 16: Role of testing in COVID-19 control Open
The World Health Organization has called for increased molecular testing in response to the COVID-19 pandemic, but different countries have taken very different approaches. We used a simple mathematical model to investigate the potential e…
View article: Report 12: The global impact of COVID-19 and strategies for mitigation and suppression
Report 12: The global impact of COVID-19 and strategies for mitigation and suppression Open
The world faces a severe and acute public health emergency due to the ongoing COVID-19 global pandemic. How individual countries respond in the coming weeks will be critical in influencing the trajectory of national epidemics. Here we comb…
View article: Genomic epidemiology of a densely sampled COVID-19 outbreak in China
Genomic epidemiology of a densely sampled COVID-19 outbreak in China Open
Analysis of genetic sequence data from the SARS-CoV-2 pandemic can provide insights into epidemic origins, worldwide dispersal, and epidemiological history. With few exceptions, genomic epidemiological analysis has focused on geographicall…
View article: Geographically structured genetic diversity in the cave beetle Darlingtonea kentuckensis Valentine, 1952 (Coleoptera, Carabidae, Trechini, Trechina)
Geographically structured genetic diversity in the cave beetle Darlingtonea kentuckensis Valentine, 1952 (Coleoptera, Carabidae, Trechini, Trechina) Open
Cave beetles of the eastern USA are one of many poorly studied groups of insects and nearly all previous work delimiting species is based solely on morphology. This study assesses genetic diversity in the monotypic cave carabid beetle genu…
View article: The Natural Historian's Guide to the CT Galaxy: Step-by-Step Instructions for Preparing and Analyzing Computed Tomographic (CT) Data Using Cross-Platform, Open Access Software
The Natural Historian's Guide to the CT Galaxy: Step-by-Step Instructions for Preparing and Analyzing Computed Tomographic (CT) Data Using Cross-Platform, Open Access Software Open
Synopsis The decreasing cost of acquiring computed tomographic (CT) data has fueled a global effort to digitize the anatomy of museum specimens. This effort has produced a wealth of open access digital three-dimensional (3D) models of anat…
View article: Phylogeny of carabid beetles based upon DNA sequences (Coleoptera: Carabidae)
Phylogeny of carabid beetles based upon DNA sequences (Coleoptera: Carabidae) Open
I will present results from our phylogenetic study of the family Carabidae, based on DNA sequences of six gene fragments for about 550 carabid species representing about 80 tribes, as well as transcriptomic data and hybrid capture genomic …
View article: The Effect of Team-Building Interventions on Group Cohesion and Academic Performance
The Effect of Team-Building Interventions on Group Cohesion and Academic Performance Open
The present study investigates the effect of group cohesion on academic success in undergraduate students in a semester-long group project. Students in Research Methods classes form small groups at the beginning of the semester and conduct…
View article: MonotomidGen – A matrix-based interactive key to the New World genera of Monotomidae (Coleoptera, Cucujoidea)
MonotomidGen – A matrix-based interactive key to the New World genera of Monotomidae (Coleoptera, Cucujoidea) Open
A matrix-based LucidTM key is presented for the twelve genera of Monotomidae (Coleoptera: Cucujoidea) represented in the New World. A general overview is given for the features and technical specifications of an original interactive key fo…
View article: Taxonomic review of New World Tachyina (Coleoptera, Carabidae): descriptions of new genera, subgenera, and species, with an updated key to the subtribe in the Americas
Taxonomic review of New World Tachyina (Coleoptera, Carabidae): descriptions of new genera, subgenera, and species, with an updated key to the subtribe in the Americas Open
The classification of the carabid subtribe Tachyina (Trechitae: Bembidiini) is reviewed in light of newly discovered diversity from Central and South America. Described herein are three new genera (Tachyxystagen. n., Stigmatachysgen. n., N…
View article: Phylogeography of Darlingtonea Kentuckensis and Molecular Systematics of Kentucky Cave Trechines
Phylogeography of Darlingtonea Kentuckensis and Molecular Systematics of Kentucky Cave Trechines Open
The monotypic cave carabid genus Darlingtonea is widely distributed along the eastern band of the Mississippian/Pennyroyal plateau in Kentucky and northern Tennessee. DNA sequence data from the mitochondrial gene cytochrome oxidase subunit…