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Factors That Influence Disease Severity In Tuberculosis
Funder
National Health and Medical Research Council
Funding Amount
$149,076.00
Summary
Tuberculosis (TB) is a major global health problem and is one of the leading causes of death from an infectious disease worldwide. The severity of disease that occurs with TB is dependent on many complex factors including the infected person’s immune system and factors related to the TB organism itself. This research will determine the key factors that cause severe disease in TB which will translate into improved care of TB patients and enhance further research in this field.
Age-and Species-related Regulation Of Host Inflammatory Responses In Falciparum And Vivax Malaria
Funder
National Health and Medical Research Council
Funding Amount
$323,640.00
Summary
Malaria kills 1 million people every year, mostly children. The cause of death from malaria differs between children and adults, yet the reason for these differences is unknown. We have shown that in adults regulatory immune cells contribute to malaria disease complications. We want to test if these cells also worsen malaria disease in children. Understanding age-related differences in immune cell regulation will help to improve malaria treatment and aid development of effective malaria vaccines ....Malaria kills 1 million people every year, mostly children. The cause of death from malaria differs between children and adults, yet the reason for these differences is unknown. We have shown that in adults regulatory immune cells contribute to malaria disease complications. We want to test if these cells also worsen malaria disease in children. Understanding age-related differences in immune cell regulation will help to improve malaria treatment and aid development of effective malaria vaccines for adults and children.Read moreRead less
A Functional And Structural Approach To Understanding Leptospiral Host-pathogen Interactions
Funder
National Health and Medical Research Council
Funding Amount
$504,097.00
Summary
Leptospirosis is a zoonosis of worldwide distribution caused by infection with pathogenic Leptospira. Infection occurs due to contact with water contaminated by urine of domestic animals. It occurs infrequently in Australia, but recent local surveillance data indicate hospitalisation rate of 56% with an average duration of 5.3 days. Through the combined approach of structural biology and functional microbiology we hope to understand how leptospira interacts with the human host.
We seek to gain a detailed understanding of how interactions between the West Nile virus proteins and host factors involved in the IFN response determine the outcome of virus infection. Better understanding of the mechanisms employed by this highly pathogenic virus to disable the mammalian host's IFN response will have wider implications for our understanding of other human diseases such as cancer, autoimmunity and provide new avenues for design of efficient antiviral and anticancer therapies.
Lipocalin 2 In Host Defence Of The Central Nervous System
Funder
National Health and Medical Research Council
Funding Amount
$575,014.00
Summary
Lipocalin 2 is a protein that is involved in protection of the host organism against bacterial infections. We have found that high levels of lipocalin 2 are produced by a variety of cells in the brain in response to not only bacterial products but also to infection with West Nile virus (WNV). WNV is a dangerous virus known to cause lethal encephalitis. This project will determine the role of lipocalin 2 in the defence of the host against WNV encephalitis.
Randomised Trial To Determine The Safety And Efficacy Of Early Versus Deferred Treatment Of Adult HIV Infection
Funder
National Health and Medical Research Council
Funding Amount
$417,254.00
Summary
The purpose of this randomised study is to determine whether the use of combination antiviral drugs during early stages of HIV disease is superior to later use in adults with HIV infection. Superiority is defined in terms of reducing the number of serious diseases and deaths that are associated with HIV infection.
Structural Characterization Of Novel AB5 Cytotoxin - SubAB
Funder
National Health and Medical Research Council
Funding Amount
$445,011.00
Summary
AB5 toxins are virulence factors from a range of pathogenic bacteria, including Shiga toxigenic E. coli (STEC), S. dysenteriae, V. cholerae, and B. pertussis. AB5 toxins comprise a catalytic A subunit that disrupts distinct essential cellular processes within the cell and a receptor binding, pentameric B subunit that enables the toxin to target certain cell types. We are structural characterizing a novel AB5 toxin that targets an essential component of the cellular machinery.
Regulation Of Subcellular Localisation Of Respiratory Syncytial Virus M Protein: Implications For Pathology
Funder
National Health and Medical Research Council
Funding Amount
$580,195.00
Summary
Respiratory syncytial virus (RSV) is the major cause of viral pneumonia in infants and the elderly, causing more deaths in winter than influenza. We have observed RSV M protein in the nucleus of infected host cells where it inhibits host cell transcription. We propose to investigate the regulation of nuclear localisation of M by phosphorylation and binding to cellular factors and its importance to RSV pathogenesis. The results will relate strongly to future drug and vaccine development.
The Role Of Subgenomic Non-coding Viral RNA In Flavivirus Pathogenicity
Funder
National Health and Medical Research Council
Funding Amount
$555,325.00
Summary
Flaviviruses are transmitted by insects and pose a serious health threat to the Australian population. They can cause fever syndromes, encephalitis and death. We aim at better understanding of how these viruses cause disease. We are particularly interested in elucidating the role of small non-coding nucleic acid produced by flaviviruses in the viral pathogenicity. Ultimately, this deeper understanding should lead to the development of effective vaccines and antiviral therapies.
Transcriptome Characterization Of Klebsiella Pneumoniae During Infection (TRACKIN)
Funder
National Health and Medical Research Council
Funding Amount
$348,806.00
Summary
Klebsiella pneumoniae (KP) is an important pathogen associated with high mortality and antimicrobial resistance. Upon infection, the host activates a sophisticated immune response, but there is evidence that KP is capable of modifying this response. Here I will take advantage of cutting-edge genome sequencing to understand the interactions between KP and host immunity. These studies will provide a pathway for the development of new therapeutic strategies to combat multiresistant infections.