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Clostridioides (Clostridium) difficile in hospitalised children in CambodiaKefyalew Alene BSc, MPH, PhD Head, Geospatial and Tuberculosis 0404705064 Kefyalew.alene@thekids.org.au Honorary Research Fellow Dr Kefyalew Alene
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“You’re telling us to go first?!” COVID-19 pandemic and vaccination experiences among Aboriginal adults in Western AustraliaGlobally, Indigenous populations have been disproportionately impacted by pandemics. In Australia, though national infection rates with COVID-19 infections in Aboriginal and/or Torres Strait Islander people were lower in the first 12 months of the COVID-19 pandemic, there was soon a greater burden in Aboriginal and/or Torres Strait Island people once Omicron was circulating. Uptake of the COVID-19 vaccine was also lower among Aboriginal and/or Torres Strait Islander people.
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Geographical migration and fitness dynamics of Streptococcus pneumoniaeStreptococcus pneumoniae is a leading cause of pneumonia and meningitis worldwide. Many different serotypes co-circulate endemically in any one location. The extent and mechanisms of spread and vaccine-driven changes in fitness and antimicrobial resistance remain largely unquantified.
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Recovery of culturable Streptococcus pyogenes from swabs stored at different temperaturesImproving our understanding of superficial Streptococcus pyogenes (Strep A) carriage and transmission necessitates robust sampling methods. Here, we compared the effect of storing swab samples in fridge (+4°C) and freezer (-20°C) conditions on the recovery of laboratory-cultured S. pyogenes.
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Strep A: challenges, opportunities, vaccine-based solutions and economicsStreptococcus pyogenes (Strep A) is a leading cause of morbidity and mortality across the globe, annually causing hundreds of millions of cases of disease.
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Correlating Quantitative and Genomic SARS-CoV-2 Wastewater Data with Clinical Metrics in Metropolitan Perth, Western AustraliaWastewater-based epidemiology (WBE) has emerged as a key method for the continuous monitoring of COVID-19 prevalence including circulating SARS-CoV-2 lineages. WBE addresses the limitations of traditional clinical COVID-19 surveillance such as clinical test availability, fluctuating testing rates, and increased reliance on rapid antigen tests.
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Head-to-Head Comparison Between Respiratory Syncytial Virus and Human Metapneumovirus Bronchiolitis in the Setting of Increased Viral TestingWe compared the epidemiology, severity and management of hospitalized respiratory syncytial virus (n = 305) and human metapneumovirus (n = 39) bronchiolitis in a setting with high respiratory virus testing (95% of admissions tested). Respiratory syncytial virus-positive infants were younger and tended to require more hydration support and longer hospital stays compared to human metapneumovirus-positive infants. Respiratory support requirements were similar between groups despite significant age differences.
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An infant mouse model of influenza-driven nontypeable Haemophilus influenzae colonization and acute otitis media suitable for preclinical testing of novel therapiesNontypeable Haemophilus influenzae (NTHi) is a major otitis media (OM) pathogen, with colonization a prerequisite for disease development. Most acute OM is in children <5 years old, with recurrent and chronic OM impacting hearing and learning. Therapies to prevent NTHi colonization and/or disease are needed, especially for young children. Respiratory viruses are implicated in driving the development of bacterial OM in children.
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The Changing Detection Rate of Respiratory Syncytial Virus in Adults in Western Australia between 2017 and 2023The incidence of respiratory syncytial virus (RSV) in adults is inadequately defined and the impact of SARS-CoV-2-related non-pharmaceutical interventions (NPIs) is underexplored. Using laboratory data, we described the detection rate of RSV in adults ≥16 years in Western Australia (WA) between 2017 and 2023.
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The genomic evolutionary dynamics and global circulation patterns of respiratory syncytial virusRespiratory syncytial virus (RSV) is a leading cause of acute lower respiratory tract infection in young children and the second leading cause of infant death worldwide. While global circulation has been extensively studied for respiratory viruses such as seasonal influenza, and more recently also in great detail for SARS-CoV-2, a lack of global multi-annual sampling of complete RSV genomes limits our understanding of RSV molecular epidemiology.