Defining domains within Mycoplasma hyopneumoniae surface proteins that interact with host extracellular matrix: efficacy testing of candidate vaccines in swine. Over 90% of Australian commercial pig production facilities are affected by Mycoplasma hyopneumoniae, the causative agent of swine enzootic pneumonia. This disease causes economic losses in Australia of over $20 million per annum and up to $1 billion per annum in major swine rearing countries worldwide. This project will determine the p ....Defining domains within Mycoplasma hyopneumoniae surface proteins that interact with host extracellular matrix: efficacy testing of candidate vaccines in swine. Over 90% of Australian commercial pig production facilities are affected by Mycoplasma hyopneumoniae, the causative agent of swine enzootic pneumonia. This disease causes economic losses in Australia of over $20 million per annum and up to $1 billion per annum in major swine rearing countries worldwide. This project will determine the protective efficacy of new generation vaccines against M. hyopneumoniae, which aim to block the colonisation process and prevent disease .Read moreRead less
Identification and characterisation of Mycoplasma hyopneumoniae surface-molecules that interact with the host epithelium. Mycoplasma hyponeumoniae causes porcine enzootic pneumonia, a disease that significantly impacts swine production. Current vaccines are unable to prevent colonisation of the respiratory tract and are costly to produce and administer. The expression of microbial adhesins that mediate adherence to the extracellular matrix is considered the initial step in host colonisation for ....Identification and characterisation of Mycoplasma hyopneumoniae surface-molecules that interact with the host epithelium. Mycoplasma hyponeumoniae causes porcine enzootic pneumonia, a disease that significantly impacts swine production. Current vaccines are unable to prevent colonisation of the respiratory tract and are costly to produce and administer. The expression of microbial adhesins that mediate adherence to the extracellular matrix is considered the initial step in host colonisation for many bacterial pathogens. We propose to identify M. hyopneumoniae cell surface moleculaes that interact with components of the extracellular matrix. Targetting these cell surface molecules will lead to therapeutics that prevent disease and block colonisation, eventually eradicating the host pathogen from pig production facilities.Read moreRead less
Development of an attenuated vaccine to control the emerging bovine respiratory pathogen Mycoplasma bovis. The project will develop an attenuated vaccine to control the emerging bovine respiratory pathogen Mycoplasma bovis. This pathogen is a major contributor to bovine pneumonia in the feedlot industry and improved control will reduce reliance on antibiotics in cattle production.
Understanding the molecular basis of virulence in Brachyspira hyodysenteriae to improve vaccine design. Swine dysentery is a colonic infection of pigs caused by Brachyspira hyodysenteriae. The disease is widespread in Australia and causes great economic loss. An effective vaccine is not available. This study aims to identify factors associated with the bacterium's virulence, using comparative genomic and proteomic information. Virulence factors then will be targeted and tested as recombinant vac ....Understanding the molecular basis of virulence in Brachyspira hyodysenteriae to improve vaccine design. Swine dysentery is a colonic infection of pigs caused by Brachyspira hyodysenteriae. The disease is widespread in Australia and causes great economic loss. An effective vaccine is not available. This study aims to identify factors associated with the bacterium's virulence, using comparative genomic and proteomic information. Virulence factors then will be targeted and tested as recombinant vaccine candidates. This project will result in the development of an improved vaccine to control swine dysentery in rural Australia. Control of swine dysentery through vaccination will reduce antibiotic use on infected farms and improve the productivity and competitiveness of the Australian pig industry.Read moreRead less
Proteomics and vaccine development in swine dysentery. Swine dysentery is an infectious disease of significant economic importance caused by Brachyspira hyodysenteriae. There is no effective vaccine available. This project will combine modern techniques in microbial genomics and proteomics to identify outer membrane proteins of B. hyodysenteriae and evaluate their role as candidate vaccine antigens.
Genomic sequencing and comparative genomic analysis for animal bacterial vaccine discovery. The aim of this project is to develop vaccines for the control of swine dysentery (pigs) and intestinal spirochaetosis (pigs and chickens). These infections cause important production-limiting diseases for which no effective vaccines are available. We will use whole genomic sequencing of the two causal species of intestinal spirochaetal bacteria, with a bioinformatics-based analysis of the data to identif ....Genomic sequencing and comparative genomic analysis for animal bacterial vaccine discovery. The aim of this project is to develop vaccines for the control of swine dysentery (pigs) and intestinal spirochaetosis (pigs and chickens). These infections cause important production-limiting diseases for which no effective vaccines are available. We will use whole genomic sequencing of the two causal species of intestinal spirochaetal bacteria, with a bioinformatics-based analysis of the data to identify potential cell surface structures that will be tested as the basis of new recombinant vaccines. Outcomes will include the development of new commercial products, increased institutional capacity in veterinary vaccine discovery, and ultimately improved animal health and production in rural Australia.Read moreRead less
Novel vaccines and serotyping scheme for Haemophilus parasuis. Glasser's disease, caused by the bacterium Haemophilus parasuis, is a significant problem in Australian and overseas pig industries. Current approaches to the management of Glassers disease utilise antibacterials and also vaccines. However, antibacterials are of limited effectiveness in juvenile pigs (weaners) that are difficult to medicate other than by injection, and current vaccines are only protective against the serotypes incl ....Novel vaccines and serotyping scheme for Haemophilus parasuis. Glasser's disease, caused by the bacterium Haemophilus parasuis, is a significant problem in Australian and overseas pig industries. Current approaches to the management of Glassers disease utilise antibacterials and also vaccines. However, antibacterials are of limited effectiveness in juvenile pigs (weaners) that are difficult to medicate other than by injection, and current vaccines are only protective against the serotypes included in the vaccine. We propose to examine the immune response to natural infection and identify potential vaccine candidates which will then be tested in vaccine trials. The APAI will focus on developing a DNA-based typing scheme for H. parasuis.Read moreRead less
Equine rhinitis A virus; molecular pathogenesis and methods for control. The horse industry in Australia is primarily based in rural locations and is a major contributor to the national economy both in terms of direct economic contribution to gross domestic product and as a major employer of people in regional Australia. The research proposed in this project will improve our understanding of the pathogenesis of a virus that causes respiratory disease in horses that is related to the virus that c ....Equine rhinitis A virus; molecular pathogenesis and methods for control. The horse industry in Australia is primarily based in rural locations and is a major contributor to the national economy both in terms of direct economic contribution to gross domestic product and as a major employer of people in regional Australia. The research proposed in this project will improve our understanding of the pathogenesis of a virus that causes respiratory disease in horses that is related to the virus that causes foot and mouth disease in ruminants and swine. The technology developed during this project would have a global market.Read moreRead less
Subspecies distribution and virulence of Streptococcus uberis. Streptococcus uberis is a significant cause of bovine mastitis. Attempts to produce a successful vaccine against S. uberis have been hampered by the lack of knowledge of phylogenetic relationships within the species and virulence mechanisms. It is uncertain whether pathogenic strains are clonal or are acquired opportunistically from a diverse population in the environment. This project aims to examine the phylogenetic structure of ....Subspecies distribution and virulence of Streptococcus uberis. Streptococcus uberis is a significant cause of bovine mastitis. Attempts to produce a successful vaccine against S. uberis have been hampered by the lack of knowledge of phylogenetic relationships within the species and virulence mechanisms. It is uncertain whether pathogenic strains are clonal or are acquired opportunistically from a diverse population in the environment. This project aims to examine the phylogenetic structure of S. uberis by multilocus sequence typing and investigate control of virulence gene expression in S. uberis. The information obtained will be used to improve the formulation of a bovine mastitis vaccine developed by RMIT University and Vet Biosearch.Read moreRead less
Blocking immune responses: a critical factor in herpesvirus virulence? The horse and poultry industries are two large, primarily rural based livestock production industries that are major contributors to the national economy. The research proposed in this project will improve our understanding of the pathogenesis of two important viral pathogens that are each a significant cost to their respective industry, and thus will ultimately reduce the cost of these two viruses to industry. In addition, ....Blocking immune responses: a critical factor in herpesvirus virulence? The horse and poultry industries are two large, primarily rural based livestock production industries that are major contributors to the national economy. The research proposed in this project will improve our understanding of the pathogenesis of two important viral pathogens that are each a significant cost to their respective industry, and thus will ultimately reduce the cost of these two viruses to industry. In addition, the technology developed during this project would have a global market and may be transferable to other viral pathogens of other domestic species.Read moreRead less