Alphaherpesvirus recombination: safety implications for attenuated Herpesvirus vaccines. Under certain conditions some herpesviruses, including mild vaccine strains, can recombine to generate virulent viruses. Following findings that this occurred naturally between Australian poultry vaccines, with devastating results, this project will study natural herpesvirus recombination with the aim of allowing vaccines to be used more safely.
Evaluating host-parasite interplay in individual tissues. The immune system of the host and the infecting parasite has coevolved into a sophisticated balance of power. This project will explore this balance using Schistosoma japonicum infection in sheep and determine immune mechanisms unleashed by the host in various tissues as well as the response of the parasite to these attacks.
Virulence determinants influencing re-emergence of a complex RNA virus. This project intends to examine the effects that specific genes in naturally occurring recombinants have on their capacity to cause disease and spread between chickens. Coronaviruses are major pathogens of domestic animals throughout the world. Recurrent re-emergence of the coronavirus of chickens, infectious bronchitis virus, has been associated with recombination between wild type viruses and vaccine viruses, but the facto ....Virulence determinants influencing re-emergence of a complex RNA virus. This project intends to examine the effects that specific genes in naturally occurring recombinants have on their capacity to cause disease and spread between chickens. Coronaviruses are major pathogens of domestic animals throughout the world. Recurrent re-emergence of the coronavirus of chickens, infectious bronchitis virus, has been associated with recombination between wild type viruses and vaccine viruses, but the factors influencing this, and in particular the selective advantages genes from vaccine viruses confer on these recombinants, are unknown. The ultimate aim of the project is to identify both novel vaccines and alternative management strategies that might reduce the frequency of re-emergence of this virus and other coronaviruses.Read moreRead less
Linking immunomodulation and latency in alphaherpesvirus infection. Herpesviruses cause major diseases in humans and all domestic animal species. Latency forms a significant part of the evolutionary success of herpesviruses, by enabling transmission of the virus throughout the lifetime of the host. Our work has shown that an alphaherpesvirus protein can divert the host’s immune response to become more antibody-mediated and less T cell-mediated. This study explores the consequences of this immune ....Linking immunomodulation and latency in alphaherpesvirus infection. Herpesviruses cause major diseases in humans and all domestic animal species. Latency forms a significant part of the evolutionary success of herpesviruses, by enabling transmission of the virus throughout the lifetime of the host. Our work has shown that an alphaherpesvirus protein can divert the host’s immune response to become more antibody-mediated and less T cell-mediated. This study explores the consequences of this immune diversion, and examines whether this reduced T cell response enables the development of latent infections. Disrupting the virus-host balance by alterations to this conserved viral protein will enable novel approaches to controlling these economically significant viruses.Read moreRead less
Epidemiology and pathogenesis of chytridiomycosis in Australian frogs. Strong evidence exists that chytridiomycosis is an introduced disease of amphibians that has caused mass mortality resulting in amphibian population declines and extinctions. Epidemiologic studies will include i) field and experimental studies to determine mortality rates, transmission rates, differences in species susceptibility, and persistence of the pathogen as a saprobe, and ii) molecular epidemiology of fungal strains t ....Epidemiology and pathogenesis of chytridiomycosis in Australian frogs. Strong evidence exists that chytridiomycosis is an introduced disease of amphibians that has caused mass mortality resulting in amphibian population declines and extinctions. Epidemiologic studies will include i) field and experimental studies to determine mortality rates, transmission rates, differences in species susceptibility, and persistence of the pathogen as a saprobe, and ii) molecular epidemiology of fungal strains to examine spread and origin. Pathogenicity studies will be aimed at how chytridiomycosis causes death in frogs. The results will be significant for the conservation of amphibians worldwide and in improving our understanding of diseases in free-living animals.Read moreRead less
Structural and functional investigations into a novel chemokine binding protein encoded by evolutionarily diverse alphaherpesviruses. The outcomes of this project will help control disease caused by alphaherpesviruses, including disease in livestock (horses and poultry) and wildlife (kangaroos and wallabies). This will enhance animal health and welfare and will also benefit the associated industries. Livestock industries are critically important to the Australian economy (equine and poultry indu ....Structural and functional investigations into a novel chemokine binding protein encoded by evolutionarily diverse alphaherpesviruses. The outcomes of this project will help control disease caused by alphaherpesviruses, including disease in livestock (horses and poultry) and wildlife (kangaroos and wallabies). This will enhance animal health and welfare and will also benefit the associated industries. Livestock industries are critically important to the Australian economy (equine and poultry industries annually contribute approximately $7.7 and $2.6 billion respectively to our GDP). Wildlife species are crucial to Australian ecosystems and feature in the Australian tourism industry. This project is expected to strengthen international research collaborations and further enhance Australia's reputation as a world-class leader in research and biotechnology.Read moreRead less
Bacterial and host drivers of chlamydial blindness in koalas. Chlamydial infection of the eyes is a significant cause of disease and death in koalas, contributing to the ongoing decline of this native species. Little is known about what influences the outcome of these infections, challenging efforts to manage and control koala chlamydial blindness. This project aims to evaluate whether differences in the infecting Chlamydia pecorum strains or the koala immune response, are associated with the ou ....Bacterial and host drivers of chlamydial blindness in koalas. Chlamydial infection of the eyes is a significant cause of disease and death in koalas, contributing to the ongoing decline of this native species. Little is known about what influences the outcome of these infections, challenging efforts to manage and control koala chlamydial blindness. This project aims to evaluate whether differences in the infecting Chlamydia pecorum strains or the koala immune response, are associated with the outcome of chlamydial ocular infection. In addition to helping us to understand and prevent blindness in koalas, this project should significantly expand our knowledge of the koala immune system and generate an array of koala immunological assays, outcomes that may benefit all koala conservation efforts.Read moreRead less
Host-tumour interplay in Tasmanian devils with devil facial tumour disease: can immune cells be harnessed for therapy? Tasmanian devils only exist naturally in Tasmania and Devil Facial Tumour Disease, an infectious cancer, could cause the extinction of the Tasmanian devil. This project will determine if Devil Facial Tumour Disease reduces the effectiveness of the devil's immune system and test if activated immune cells can protect against this disease.
Elucidating a key developmental switch in Haemonchus contortus using a massively parallel picolitre reactor sequencing-coupled genomic and bioinformatic platform. The national/community benefits of this project include enhanced focus on animal and human health biotechnology through the development of safe anti-parasite compounds/vaccines; improved and sustainable control of key parasites with decreased risk of induction of drug resistance; increased profitability of agricultural animal productio ....Elucidating a key developmental switch in Haemonchus contortus using a massively parallel picolitre reactor sequencing-coupled genomic and bioinformatic platform. The national/community benefits of this project include enhanced focus on animal and human health biotechnology through the development of safe anti-parasite compounds/vaccines; improved and sustainable control of key parasites with decreased risk of induction of drug resistance; increased profitability of agricultural animal production; consolidation of a technology platform for further applications in genomics and post-genomics of pathogens of global significance and construction of a pipeline for the validation of drug targets; capturing the benefits from fundamental research and strengthening links between fundamental and applied research; and increasing the quality and quantity of scientifically skilled people in biotechnology.Read moreRead less
Discovery of early developmental events in the transition to parasitism in the hookworm Ancylostoma caninum using genomic technologies. The national/community benefits are: (1) to develop a long-term, high quality scientific and technological program contributing to national objectives, including the maintenance of a strong capability in basic research, the development of new scientific concepts and the enhancement of international collaborative links; (2) to strengthen the links between basic a ....Discovery of early developmental events in the transition to parasitism in the hookworm Ancylostoma caninum using genomic technologies. The national/community benefits are: (1) to develop a long-term, high quality scientific and technological program contributing to national objectives, including the maintenance of a strong capability in basic research, the development of new scientific concepts and the enhancement of international collaborative links; (2) to strengthen the links between basic and applied research; (3) to develop excellence in research by promoting collaborative research, resulting in a more efficient use of resources in a national and international context; (4) to enhance the skills-base in biology and biotechnology; (5) to substantially increase global visibility through quality research, leading to an increased investment in Australian science.Read moreRead less