Molecular Typing And Epidemiology Of Bordetella Pertussis In Australia
Funder
National Health and Medical Research Council
Funding Amount
$552,662.00
Summary
Pertussis, commonly known as whooping cough, is an acute respiratory disease caused by Bordetella pertussis. Despite more than half a century of vaccination, pertussis has remained endemic in Australia, causing epidemic outbreaks every 3 to 4 years. Indeed the incidence has been increasing in recent years with over 11,000 cases notified in 2005.Pertussis is the commonest of all vaccine preventable diseases targeted by the Australian standard vaccination schedule. To control pertussis, appropriat ....Pertussis, commonly known as whooping cough, is an acute respiratory disease caused by Bordetella pertussis. Despite more than half a century of vaccination, pertussis has remained endemic in Australia, causing epidemic outbreaks every 3 to 4 years. Indeed the incidence has been increasing in recent years with over 11,000 cases notified in 2005.Pertussis is the commonest of all vaccine preventable diseases targeted by the Australian standard vaccination schedule. To control pertussis, appropriate epidemiological surveillance must be implemented to monitor the circulating B. pertussis strains and emergence of any new strains, in particular those that escape the protection by vaccines. This project will use a novel genomic comparison approach to find variation known as single nucleotide polymorphisms (SNP) present around the genome. We will use these SNPs to analyse a large collection of Australian and worldwide isolates to identify those SNPs most suitable for typing and determine the optimal number of SNPs needed for discrimination. A standardized, consistent and reliable typing method for strain identification will be established. We will further develop an integrated method for detecting known variation in the genes encoding the five acellular vaccine antigens. A combined method for strain identification and detection of antigenic variation will then be developed for culture-independent typing, enabling identification of the strain infecting an individual directly from a clinical sample without the need for culture. This study will establish molecular methods for surveillance of pertussis in Australia, essential for further improvement of acellular pertussis vaccines and public health control measures.Read moreRead less
Reducing Pertussis Burden By Optimising Molecular Epidemiological Surveillance Of Epidemic Bordetella Pertussis In Australia
Funder
National Health and Medical Research Council
Funding Amount
$487,258.00
Summary
Australia has experienced a prolonged epidemic of pertussis from 2008 to 2012 and is currently experiencing another epidemic. In this project, we aim to elucidate the evolutionary dynamics of the epidemics by genome sequencing and develop a practical high throughput culture independent method for epidemiological typing. The outcomes will be highly significant for surveillance of pertussis infections and designing strategies for control and prevention of pertussis.
Development of a safe and immunogenic anti-chlamydia vaccine for the koala. Many koala populations are under threat of extinction from chlamydial disease.The project will develop a chlamydial vaccine and conduct trials in several wild koala populations for safety and effectiveness.
MECHANISMS AND MARKERS OF TUBERCULOSIS TRANSMISSION WITHIN AUSTRALIA
Funder
National Health and Medical Research Council
Funding Amount
$799,978.00
Summary
Tuberculosis (TB) kills nearly 2 million people each year. The emergence of drug resistant TB in the Asia-Pacific region poses a particular threat to Australia, due to frequent population mixing and ongoing TB transmission that may facilitate its spread within vulnerable communities. The proposed study will develop advanced tools to monitor and limit TB transmission within Australia. It will also provide novel insight into the evolution of the global TB epidemic and key factors that sustain it.
Understanding The Disease Burden And Antibiotic Resistance In Patients With Bloodstream Infections Caused By Enterobacteriaceae In Australia
Funder
National Health and Medical Research Council
Funding Amount
$135,285.00
Summary
This study aims to establish the epidemiology of bloodstream infections caused by Enterobacteriaceae (enteric or gut bacteria) in Australia, by examining infection rates, types of antibiotic resistance present, and which treatments optimise clinical outcomes.
Optimising Temporal Genomic Surveillance Of Salmonella Infections In Australia
Funder
National Health and Medical Research Council
Funding Amount
$763,447.00
Summary
Salmonella is a leading cause of the food-borne disease – salmonellosis. It is responsible for considerable morbidity and has an enormous economic cost. Molecular typing is the key to rapidly identify and control outbreaks. This project will optimise the use of whole genome sequencing for outbreak investigation and long term epidemiology. A surveillance system that integrates genome sequence and epidemiological data will be highly significant for outbreak investigation and disease prevention.
Molecular Epidemiology Of Mycobacterium Tuberculosis Infection In The Northern Territory, Australia
Funder
National Health and Medical Research Council
Funding Amount
$122,714.00
Summary
The Northern Territory (NT) of Australia has the highest jurisdiction-specific rates of tuberculosis (TB) in Australia, and TB is a disease that disproportionately affects Indigenous people. The factors that contribute to the spread of TB in the NT are incompletely understood. We plan to use technology known as “whole genome sequencing” of bacterial DNA to better the understanding of the spread of TB in the NT. This will help guide TB control policies.
A One Health Approach To Assessing The Threat Of Clostridium Difficile To Australia’s Biosecurity: A Genomic Investigation Of Human, Animal And Environmental Isolates
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
Clostridium difficile is a bacterium that causes life-threatening diarrhoea in humans and animals and is a major public health issue in Australia. This project will study the genetic make-up of the bacterium and identify factors contributing to the emergence, evolution, and spread of C. difficile. This knowledge will be essential in guiding effective public health interventions and reducing deaths from C. difficile infection in humans and animals.
Tackling Urgent Antimicrobial Resistance Threats In Australia—in Action
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
Antimicrobial resistance is a major global concern, there are limited new treatment options and current resistance surveillance practices have limitations. As a part of this fellowship I will collaborate with industry partners, utilise geographical mapping and novel DNA sequencing technologies with a view to enhance resistance surveillance for gonorrhoea and other public health threats, inform new treatment strategies and better understand the spread of gonorrhoea in the population.
Evolution Of Pertussis Epidemics And Effect Of Genotypes On Infection Outcomes And Immunisation
Funder
National Health and Medical Research Council
Funding Amount
$657,781.00
Summary
Pertussis, or whooping cough, is caused by Bordetella pertussis. Despite high vaccine coverage, the incidence of pertussis has increased substantially in recent years in Australia. One of the contributing factors is changes in the pertussis strains. This project will determine the genetic composition and virulence characteristics of epidemic strains in Australia and investigate the effect of these strains on disease severity and vulnerability of vaccinated individuals to infection.