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New pneumococcal vaccine closes in on approval

Pneumococcal – a bacterial infection that can cause pneumonia and meningitis – is responsible for 1000s of hospital admissions in Australia each year, many of them children.

Trigger Factor in Burkholderia pseudomallei is essential for key virulence determinants, including host cell internalization, cytotoxicity, motility, and stress resistance

Burkholderia pseudomallei is a facultative intracellular pathogen and the causative agent of melioidosis. Treatment of this deadly infection is both protracted and limited to only a select number of antibiotics. Not only can patients suffer adverse reactions to prolonged therapy, but resistance has also been reported in several clinical isolates.

Vaccination

Vaccination is the injection of an inactivated bacteria or virus into the body. This simulated infection allows an individual's immune system to develop an adaptive immunity for protection against that type of illness. When a sufficiently large percentage of a population has been vaccinated, this results in herd immunity.

Higher Promoter Methylation of the Ubiquitin-Associated and SH3 Domain Containing A (UBASH3A) Gene Is Associated With T-Lymphocyte Ontogeny and Reduced Susceptibility to Early-Onset Sepsis

We investigated the genetic and epigenetic regulation of the UBASH3A gene and its association with early-onset sepsis. Using matched whole blood DNA methylation, gene expression, genotypes, and immune cell counts from the EPIC-HIPC newborn cohort, we report that promoter methylation was negatively correlated with ontogenetic changes in UBASH3A gene expression and circulating CD3+ T-cell numbers. 

Understanding parental decisions to decline or delay infant RSV immunisation, nirsevimab, in Western Australia in 2024

In 2024, the government of Western Australia introduced 'nirsevimab', a monoclonal antibody offering protection from respiratory syncytial virus (RSV), for eligible infants. This study explores why parents of infants who were eligible to receive nirsevimab opted to decline or delay the immunisation.

Blinatumomab limits humoral antibody response despite boosting the influenza vaccine schedule in children with B-ALL

Nick Rishi S. Laurence Sung Gottardo Kotecha Cheung Chiu MBChB FRACP PhD MB ChB (Hons) MRCPCH FRACP PhD BPharm (Hons) MBA PhD MBBS FRACP FRCPA PhD

Whooping Cough

Whooping cough (pertussis) is a highly contagious respiratory infection which causes a severe cough and can be particularly dangerous to babies under a year old. Vaccination is the best way to reduce the risk of whooping cough.

Increased burden of invasive group A streptococcal disease among Australian children, 2023–2024: a prospective cohort study

Global rates of invasive Group A Streptococcus (iGAS) disease surged from September 2022, exceeding pre-COVID-19 pandemic levels, showing atypical seasonality and disproportionately affecting children. We previously described the epidemiology of iGAS among Australian children from mid-2018 to end 2022 using data from the Paediatric Active Enhanced Diseases network and here provide updated clinical epidemiology for 2023 and 2024 to help inform public health strategies.

SARS-CoV-2 reinfections and subsequent risk of hospital-diagnosed post-acute sequelae in Denmark (2020–2022): a nationwide cohort study

Post-acute sequelae of COVID-19 (PASC), or long COVID, are a public health concern. While most recover from SARS-CoV-2 infections within weeks, some experience persistent symptoms. Here, we quantified the association between repeated SARS-CoV-2 infections and the risk of hospital-diagnosed PASC.

Modelling the impact of long-acting monoclonal antibody, maternal vaccine and hybrid programs of RSV immunisation in temperate Western Australia

Two RSV immunisations products: a maternal vaccine, Abrysvo, and a long-acting monoclonal antibody, nirsevimab, both designed to prevent RSV illness in infants, have recently become available. Modelling evidence is required to inform how to optimally use these products in immunisation programs to reduce the burden of RSV in young children.