Epidemiology Commons^™

Socioeconomic, Ethnocultural, Substance- And Cannabinoid-Related Epidemiology Of Down Syndrome Usa 1986–2016: Combined Geotemporospatial And Causal Inference Investigation, Albert Stuart Reece, Gary Kenneth Hulse

Research outputs 2022 to 2026

Background: Down syndrome (DS) is the commonest of the congenital genetic defects whose incidence has been rising in recent years for unknown reasons. This study aims to assess the impact of substance and cannabinoid use on the DS Rate (DSR) and assess their possible causal involvement. Methods: An observational population-based epidemiological study 1986–2016 was performed utilizing geotemporospatial and causal inferential analysis. Participants included all patients diagnosed with DS and reported to state based registries with data obtained from National Birth Defects Prevention Network of Centers for Disease Control. Drug exposure data was from the National Survey of Drug Use and …

Cannabis- And Substance-Related Epidemiological Patterns Of Chromosomal Congenital Anomalies In Europe: Geospatiotemporal And Causal Inferential Study, Albert Stuart Reece, Gary Kenneth Hulse

Research outputs 2022 to 2026

Introduction:

Laboratory data link cannabinoid exposure to chromosomal mis-segregation errors. Recent epidemiological reports confirm this link and raise concern that elevated chromosomal congenital anomaly rates (CCAR) may be occurring in Europe which is experiencing increased cannabis use, daily intensity of use and cannabinoid potency.

Methods:

CCAR data from Eurocat. Drug use data from the European Monitoring Centre for Drugs and Drug Addiction. Income from World Bank. Bivariate, multivariate, panel and geotemporospatial regressions analyzed. Inverse probability weighting of panel models and E-values used as major quantitative causal inferential methodologies.

Results:

In countries where daily cannabis use was rising the trend for …

Genomic Epidemiology Of Salmonella Typhi In Central Division, Fiji, 2012 To 2016, Mark R. Davies, Sebastian Duchene, Mary Valcanis, Aaron P. Jenkins, Adam Jenney, Varanisese Rosa, Andrew J. Hayes, Aneley Getahun Strobel, Liam Mcintyre, Jake A. Lacey, Elizabeth J. Klemm, Vanessa K. Wong, Aalisha Sahukhan, Helen Thomson, Andrew Page, Dianna Hocking, Nancy Wang, Litia Tudravu, Eric Rafai, Gordon Dougan, Benjamin P. Howden, John A. Crump, Kim Mulholland, Richard A. Strugnell

Research outputs 2022 to 2026

Background: Typhoid fever is endemic in some Pacific Island Countries including Fiji and Samoa yet genomic surveillance is not routine in such settings. Previous studies suggested imports of the global H58 clade of Salmonella enterica var Typhi (Salmonella Typhi) contribute to disease in these countries which, given the MDR potential of H58, does not auger well for treatment. The objective of the study was to define the genomic epidemiology of Salmonella Typhi in Fiji. Methods: Genomic sequencing approaches were implemented to study the distribution of 255 Salmonella Typhi isolates from the Central Division of Fiji. We augmented epidemiological surveillance and …

Global Evolutionary Dynamics And Resistome Analysis Of Clostridioides Difficile Ribotype 017, Korakrit Imwattana, Papanin Putsathit, Deirdre A. Collins, Teera Leepattarakit, Pattarachai Kiratisin, Thomas V. Riley, Daniel R. Knight

Research outputs 2022 to 2026

Clostridioides difficile PCR ribotype (RT) 017 ranks among the most successful strains of C. difficile in the world. In the past three decades, it has caused outbreaks on four continents, more than other ‘epidemic’ strains, but our understanding of the genomic epidemiology underpinning the spread of C. difficile RT 017 is limited. Here, we performed high-resolution phylogenomic and Bayesian evolutionary analyses on an updated and more representative dataset of 282 non-clonal C. difficile RT 017 isolates collected worldwide between 1981 and 2019. These analyses place an estimated time of global dissemination between 1953 and 1983 and identified the acquisition of …

Travel Ban Effects On Sars-Cov-2 Transmission Lineages In The Uae As Inferred By Genomic Epidemiology, Andreas Henschel, Samuel F. Feng, Rifat A. Hamoudi, Gihan Daw Elbait, Ernesto Damiani, Fathimathuz Waasia, Guan K. Tay, Bassam H. Mahboub, Maimunah Hemayet Uddin, Juan Acuna, Eman Alefishat, Rabih Halwani, Herbert F. Jelinek, Farah Mustafa, Nawal Alkaabi, Habiba S. Alsafar

Research outputs 2022 to 2026

Global and local whole genome sequencing of SARS-CoV-2 enables the tracing of domestic and international transmissions. We sequenced Viral RNA from 37 sampled Covid-19 patients with RT-PCR-confirmed infections across the UAE and developed time-resolved phylogenies with 69 local and 3,894 global genome sequences. Furthermore, we investigated specific clades associated with the UAE cohort and, their global diversity, introduction events and inferred domestic and international virus transmissions between January and June 2020. The study comprehensively characterized the genomic aspects of the virus and its spread within the UAE and identified that the prevalence shift of the D614G mutation was due to …

Immune Response To Sars-Cov-2 Variants: A Focus On Severity, Susceptibility, And Preexisting Immunity, Eman Alefishat, Herbert F. Jelinek, Mira Mousa, Guan K. Tay, Habiba S. Alsafar

Research outputs 2022 to 2026

The heterogeneous phenotypes among patients with coronavirus disease 2019 (COVID-19) has drawn worldwide attention, especially those with severe symptoms without comorbid conditions. Immune responses to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the causative virus of COVID-19, occur mainly by the innate immune response via the interferon (IFN)-mediated pathways, and the adaptive immunity via the T lymphocyte and the antibody mediated pathways. The ability of the original Wuhan SARS-CoV-2 strain, and possibly more so with new emerging variants, to antagonize IFN-mediated antiviral responses can be behind the higher early viral load, higher transmissibility, and milder symptoms compared to SARS-CoV and are …

Work-Based Concerns Of Australian Frontline Healthcare Workers During The First Wave Of The Covid-19 Pandemic, Michella Hill, Erin Smith, Brennen W. Mills

Research outputs 2014 to 2021

Objective: This research sought to gauge the extent to which doctors, nurses and paramedics in Australia were concerned about contracting SARS-CoV-2 during the country's first wave of the virus in April 2020.

Methods: Australian registered doctors, nurses and paramedics (n=580) completed an online questionnaire during April 16–30, 2020 (period immediately following the highest four-week period (first wave) of SARS-CoV-2 confirmed cases in Australia).

Results: During April 2020, two-thirds of participants felt it was likely they would contract SARS-CoV-2 at work. Half the participants suggested Personal Protective Equipment (PPE) supplies were inadequate for them to safely perform their job, with two-thirds …

Circus-Specific Extension Of The International Olympic Committee Consensus Statement: Methods For Recording And Reporting Of Epidemiological Data On Injury And Illness In Sport 2020, Stephanie Greenspan, David Munro, Joanna Nicholas, Janine Stubbe, Melanie I. Stuckey, Rogier M. Van Rijn

Research outputs 2022 to 2026

Indepth knowledge of injury and illness epidemiology in circus arts is lacking. Comparing results across studies is difficult due to inconsistent methods and definitions. In 2020, the International Olympic Committee (IOC) consensus group proposed a standard method for recording and reporting epidemiological data on injuries and illnesses in sports and stated that sport-specific extension statements are needed to capture the context of each sport. This is the circus-specific extension to be used with the IOC consensus statement. International circus arts researchers in injury and illness epidemiology and performing arts medicine formed a consensus working group. Consensus statement development included a …

A Case Report Of Covid-19 Monitoring In The Austrian Professional Football League, Antje Van Der Zee-Neuen, Dagmar Schaffler-Schaden, Jürgen Herfert, James O´Brien, Tim Johansson, Patrick Kutschar, Alexander Seymer, Stephan Ludwig, Thomas Stöggl, David Keeley, Herbert Resch, Jürgen Osterbrink, Maria Flamm

Research outputs 2014 to 2021

Since the beginning of the COVID -19 pandemic, many contact sport teams are facing major challenges to safely continue training and competition. We present the design and implementation of a structured monitoring concept for the Austrian national football league. 146 professional players from five clubs of the professional Austrian football league were monitored for a period of 12 weeks. Subjective health parameters, PCR- test results and data obtained from a geo-tracking app were collected. Simulations modelling the consequences of a COVID-19 case with increasing reproduction number were computed. No COVID -19 infection occurred during the observation period in the players. …

“Coronavirus Changed The Rules On Everything”: Parent Perspectives On How The Covid‐19 Pandemic Influenced Family Routines, Relationships And Technology Use In Families With Infants, Rebecca Hood, Juliana Zabatiero, Desiree Silva, Stephen R. Zubrick, Leon Straker

Research outputs 2014 to 2021

This study explores how the first wave of the COVID‐19 pandemic influenced family routines, relationships and technology use (smartphones and tablet computers) among families with infants. Infancy is known to be an important period for attachment security and future child development, and a time of being susceptible to changes within and outside of the family unit. A qualitative design using convenience sampling was employed. A total of 30 mothers in Perth, Western Australia participated in semi‐structured interviews by audio or video call. All mothers were parents of infants aged 9 to 15 months old. Interviews were audio‐recorded and transcribed, and …

Editorial: Covid-19, Corporate Governance, Sustainability, And The Post-Neoliberal World, Marie Dela Rama, Julie Crews

Research outputs 2014 to 2021

Welcome to this special issue of Corporate Governance and Sustainability Review focusing on the impact of thecoronavirus (COVID-19) on societies and economies worldwide. The five papers in this special issue reflect the initial impact of the COVID-19 pandemic,in its first year,on corporate governance and sustainability. What is common throughout these papers is how the pandemic has created disequilibria for many organisations. The question continues to be posed as to the new forms of organising and managing as the world reorientates or pivots in a pandemic and post-pandemic world.

Association Of National Covid-19 Cases With Objectively And Subjectively Measured Mental Health Proxies In The Austrian Football League–An Epidemiological Study, Antje Van Der Zee-Neuen, Alexander Seymer, Dagmar Schaffler-Schaden, Jürgen Herfert, James Óbrien, Tim Johansson, Patrick Kutschar, Stephan Ludwig, Thomas Stöggl, David Keeley, Maria Flamm, Jürgen Osterbrink

Research outputs 2014 to 2021

We aimed to explore the association of national COVID-19 data with the objective and subjective mental health proxies (i.e. location variance, self-reported sleep quality, level of recovery, perceived risk of infection) in team and staff members of five professional Austrian Football clubs. Data were conveniently collected during the implementation of a novel monitoring concept. The concept was designed to enable safe continuation of professional Football during the COVID-19 pandemic. These data were matched with Austrian COVID-19 data and smartphone collected location data. Multivariable linear regression models explored the association of COVID-19, defined as daily novel or active Austrian cases of …

Covid-19 Governance, Legitimacy, And Sustainability: Lessons From The Australian Experience, Michael Lester, Marie Dela Rama, Julie Crews

Research outputs 2014 to 2021

During 2020, Australia managed the global and systemic COVID-19 crisis successfully as measured by health and economic indicators. It marshalled the government’s delivery capacity to control the health crisis and put in place measures to offset the induced economic and social costs. At the same time, the crisis revealed long-standing structural weaknesses in a small, democratic, wealthy, and economically successful country that raised questions about post COVID resilience and sustainability. This paper examines that experience by applying a “co-production” governance model that sees success in “crisis management” as the striking of a balance between government capacity and its legitimacy in …

An Outbreak Of Highly Pathogenic Avian Influenza (H7n7) In Australia And The Potential For Novel Influenza A Viruses To Emerge, Andrew T. Bisset, Gerard F. Hoyne

Research outputs 2014 to 2021

In 2020, several geographically isolated farms in Victoria, Australia, experienced an outbreak of highly pathogenic avian influenza (HPAI) virus H7N7 and low pathogenic avian influenza (LPAI) viruses H5N2 and H7N6. Effective containment and control measures ensured the eradication of these viruses but the event culminated in substantial loss of livestock and significant economic impact. The avian HPAI H7N7 virus generally does not infect humans; however, evidence shows the ocular pathway presents a favourable tissue tropism for human infection. Through antigenic drift, mutations in the H7N7 viral genome may increase virulence and pathogenicity in humans. The Victorian outbreak also detected LPAI …

Organizational Factors Associated With Health Worker Protection During The Covid-19 Pandemic In Four Provinces Of South Africa, Muzimkhulu Zungu, Kuku Voyi, Nosimilo Mlangeni, Saiendhra Vasudevan Moodley, Jonathan Ramodike, Nico Claassen, Elizabeth Wilcox, Nkululeko Thunzi, Annalee Yassi, Jerry Spiegel, Molebogeng Malotle

Research outputs 2014 to 2021

Background: Health workers, in short supply in many low-and-middle-income countries, are at increased risk of SARS-CoV-2 infection. This study aimed to assess how South Africa, prepared to protect its health workers from SARS-CoV-2 infection. Methods: This was a cross-sectional study design applying participatory action research in four provinces of South Africa. A semi-structured questionnaire and a qualitative observational HealthWISE walkthrough risk assessment was carried out to collect data on occupational safety and health (OSH) systems in 45 hospitals across four provinces to identify factors associated with health worker protection. Adapting the International Labour Organization (ILO) and World Health Organization (WHO) …

The Effect Of The Covid-19 Vaccine On Daily Cases And Deaths Based On Global Vaccine Data, Zhiwei Li, Xiangtong Liu, Mengyang Liu, Zhiyuan Wu, Yue Liu, Weiming Li, Mengmeng Liu, Xiaonan Wang, Bo Gao, Yanxia Luo, Xia Li, Lixin Tao, Wei Wang, Xiuhua Guo

Research outputs 2014 to 2021

Background: Coronavirus disease 2019 (COVID-19), a global pandemic, has caused over 216 million cases and 4.50 million deaths as of 30 August 2021. Vaccines can be regarded as one of the most powerful weapons to eliminate the pandemic, but the impact of vaccines on daily COVID-19 cases and deaths by country is unclear. This study aimed to investigate the correlation between vaccines and daily newly confirmed cases and deaths of COVID-19 in each country worldwide. Methods: Daily data on firstly vaccinated people, fully vaccinated people, new cases and new deaths of COVID-19 were collected from 187 countries. First, we used …

A Race For A Better Understanding Of Covid-19 Vaccine Non-Adopters, Zhaohui Su, Jun Wen, Jaffar Abbas, Dean Mcdonnell, Ali Cheshmehzangi, Xiaoshan Li, Junaid Ahmad, Sabina Šegalo, Daniel Maestro, Yuyang Cai

Research outputs 2014 to 2021

In this paper, we aim to underscore the need for a more nuanced understanding of vaccine non-adopters. As the availability of vaccines does not translate into their adoption-a phenomenon that may be more pronounced amid "Operation Warp Speed"-it is important for public health professionals to thoroughly understand their "customers" (i.e., end users of COVID-19 vaccines) to ensure satisfactory vaccination rates and to safeguard society at large.

Contemporary Epidemiology Of Rising Atrial Septal Defect Trends Across Usa 1991–2016: A Combined Ecological Geospatiotemporal And Causal Inferential Study, Albert Stuart Reece, Gary Kenneth Hulse

Research outputs 2014 to 2021

© 2020, The Author(s). Background: Cardiovascular anomalies are the largest group of congenital anomalies and the major cause of death in young children, with various data linking rising atrial septal defect incidence (ASDI) with prenatal cannabis exposure. Objectives / Hypotheses. Is cannabis associated with ASDI in USA? Is this relationship causal? Methods: Geospatiotemporal cohort study, 1991–2016. Census populations of adults, babies, congenital anomalies, income and ethnicity. Drug exposure data on cigarettes, alcohol abuse, past month cannabis use, analgesia abuse and cocaine taken from National Survey of Drug Use and Health (78.9% response rate). Cannabinoid concentrations from Drug Enforcement Agency. Inverse …

Clostridium Difficile In Asia: Opportunities For One Health Management, Deirdre A. Collins, Thomas V. Riley

Research outputs 2014 to 2021

Clostridium difficile is a ubiquitous spore-forming bacterium which causes toxin-mediated diarrhoea and colitis in people whose gut microflora has been depleted by antimicrobial use, so it is a predominantly healthcare-associated disease. However, there are many One Health implications to C. difficile, given high colonisation rates in food production animals, contamination of outdoor environments by use of contaminated animal manure, increasing incidence of community-associated C. difficile infection (CDI), and demonstration of clonal groups of C. difficile shared between human clinical cases and food animals. In Asia, the epidemiology of CDI is not well understood given poor testing practices in many countries. …

Rare Single Gene Disorders: Estimating Baseline Prevalence And Outcomes Worldwide, Hannah Blencowe, Sowmiya Moorthie, Mary Petrou, Hanan Hamamy, Alan Bittles, Stephen Gibbons, Matthew Darlison, Bernadette Modell, Congenital Disorders Expert Group .

Research outputs 2014 to 2021

As child mortality rates overall are decreasing, non-communicable conditions, such as genetic disorders, constitute an increasing proportion of child mortality, morbidity and disability. To date, policy and public health programmes have focused on common genetic disorders. Rare single gene disorders are an important source of morbidity and premature mortality for affected families. When considered collectively, they account for an important public health burden, which is frequently under-recognised. To document the collective frequency and health burden of rare single gene disorders, it is necessary to aggregate them into large manageable groupings and take account of their family implications, effective interventions and …

Prevalence And Molecular Epidemiology Of Clostridium Difficile Infection In Indonesia, Deirdre Collins, M. H. Gasem, T. H. Habibie, I. G. Arinton, P. Hendriyanto, A. P. Hartana, T. V. Riley

Research outputs 2014 to 2021

Clostridium difficile has not been studied in detail in Asia, particularly Southeast Asia. We thus performed a prevalence study across four hospitals in Central Java province, Indonesia. Stool samples were collected from patients with diarrhoea and tested by enzyme immunoassay for glutamate dehydrogenase (GDH) and toxin A/B (C DIFF QUIK CHEK COMPLETE, TechLab). Specimens were cultured and molecular typing was performed. In total, 340 samples were tested, of which 70 (20.6%) were GDH positive, with toxin detected in 19 (5.6%). Toxigenic C. difficile was isolated from 37 specimens (10.9%), while a further 36 (10.6%) nontoxigenic isolates were identified. The most …

Investigation Of The Relationship Between Chronic Stress And Insulin Resistance In A Chinese Population, Yuxiang Yan, Huanbo Xiao, Sisi Wang, Jing Zhao, Yan He, Wei Wang, Jing Dong

Research outputs 2014 to 2021

Background:

Chronic stress may facilitate the development of metabolic diseases. Insulin resistance is present long before the clinical manifestations of individual metabolic abnormalities. To explore whether chronic stress is an independent risk factor of insulin resistance, we investigated the relationship between the stress system, selected parameters of energy homeostasis, and insulin resistance in a Chinese population.

Methods:

We recruited 766 workers employed at four companies in Beijing. The degree of insulin resistance was determined using the homeostasis model assessment of insulin resistance (HOMA-IR). The highest quartile of HOMA-IR among all study subjects was further defined as insulin resistance in our …

Mathematical Transmission Model Of The Spread Of Hiv Through Sexual Contact And Iv Drug Usage Among Heterosexuals In Western Australia, B. Glockner

Theses : Honours

The human immunodeficiency virus (HIV) and its latter stage, the acquired immune deficiency syndrome (AIDS), are still a major health problem in the world and the full extent of the epidemic is unknown. The HIV virus in Australia has been spread mainly through homosexual contact, but this mode of transmission is decreasing while transmission from heterosexual contact and from IV drug use is increasing. The proposed mathematical model concentrates on transmission of the HIV virus through heterosexual contact and IV drug use among heterosexuals in Western Australia. The model parameters will be estimated from surveys conducted by the Australian National …