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Anthony Kicic BSc (Hons) PhD Head, Airway Epithelial Research; WA Cystic Fibrosis Research Collaborative Program Fellowship; Stan Perron Charitable
Nontypeable 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.
Respiratory syncytial virus (RSV) causes serious illness in children. The Ad26.RSV.preF vaccine candidate was immunogenic with acceptable safety in a phase 1/2a study of RSV-seropositive children. Here, we assessed its safety and immunogenicity in RSV-seronegative children.
Monitoring the number of COVID-19 patients in hospital beds was a critical component of Australia's real-time surveillance strategy for the disease. From 2021 to 2023, we produced short-term forecasts of bed occupancy to support public health decision-making.
Obesity was a risk factor for severe COVID-19 in children during early outbreaks of ancestral SARS-CoV-2 and the Delta variant. However, the relationship between obesity and COVID-19 severity during the Omicron wave remains unclear.
This study presents an optimised cultured ELISpot protocol for detecting central memory T-cell interferon gamma (IFNγ) responses against SARS-CoV-2 peptides following an initial priming with either peptides, or whole spike protein.
The nasal epithelium is the primary point of contact for inhaled respiratory viruses such as rhinovirus, respiratory syncytial virus, influenza, and coronavirus, among others. In order to establish infection, these viruses must engage their respective receptors located on host epithelial cells and begin replication.
The airway mucosal epithelium is the main gateway of entry for numerous human respiratory viruses, including human influenza virus, respiratory syncytial virus, coronavirus, and rhinoviruses. For respiratory viruses to perpetuate infection, they must be able to traverse the airway mucosal epithelium and then spread into distal sites of the respiratory tract and lung parenchyma.
Respiratory Syncytial Virus (RSV) causes a significant burden of illness for children under 2 years of age. Nirsevimab, a long-acting monoclonal antibody, was registered for RSV prevention in Australia in 2023. In April 2024, Western Australia (WA) launched the country's first state-wide nirsevimab program for all infants and high-risk children entering their second RSV season.
New collaborative research involving almost 600,000 pregnant mothers has demonstrated a dramatic increase in uptake of the whooping cough (pertussis) vaccine after identifying just 22 per cent of WA women had the maternal vaccination between 2012 – 2017.