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Role of viral and bacterial pathogens in causing pneumonia among Western Australian children: A case-control study protocol

We aim to determine the contribute of bacteria and virus to childhood CAP to inform further development of effective strategies.

Rationale and methods of a randomized controlled trial of immunogenicity, safety and impact on carriage of pneumococcal conjugate and polysaccharide vaccines in infants in Papua New Guinea

Vaccination trials in high endemicity areas are needed to provide evidence and guidance on idea strategies to protect children in these areas against infections

Understanding the aetiology and resolution of chronic otitis media from animal and human studies

This Clinical Puzzle article describes our current knowledge of chronic otitis media and the existing research models for this condition

Increased CTLA-4+ T cells may contribute to impaired T helper type 1 immune responses in patients with chronic obstructive pulmonary disease

Chronic inflammation may expand sub-populations of T cells expressing CTLA-4 in COPD patients and therefore impair T-cell function

PCV10 elicits Protein D IgG responses in Papua New Guinean children but has no impact on NTHi carriage in the first two years of life

Nasopharyngeal colonisation with nontypeable Haemophilus influenzae (NTHi) is associated with development of infections including pneumonia and otitis media. The 10-valent pneumococcal conjugate vaccine (PCV10) uses NTHi Protein D (PD) as a carrier. Papua New Guinean children have exceptionally early and dense NTHi carriage, and high rates of NTHi-associated disease.

Optimising a 6-plex tetanus-diphtheria-pertussis fluorescent bead-based immunoassay

Small volume assays are required for large-scale research studies and in particular paediatric trials, where multiple measures are required from a single sample. Fluorescent bead-based technology (Bioplex/Luminex) allows high through-put and simultaneous quantification of multiple analytes in a single test. This technology uses sets of microspheres, each with a unique spectral address that can be coated with a different antigen of interest.

Nasal delivery of a commensal Pasteurellaceae species inhibits nontypeable Haemophilus influenzae colonisation and delays onset of otitis media in mice

We have demonstrated that a single dose of a closely related commensal can delay onset of NTHi otitis media in vivo

Panel 7 – Pathogenesis of otitis media – A review of the literature between 2015 and 2019

The most urgent areas appear to be to continue monitoring the emergence of novel otopathogens, and the need to develop prevention and preventative therapies

Panel 8: Vaccines and immunology

Review and highlight of the significant advances made towards vaccine development and understanding of the immunology of otitis media

Bacterial Reservoirs in the Middle Ear of Otitis-prone Children Are Associated With Repeat Ventilation Tube Insertion

Presence of bacterial otopathogen in the middle ear during ventilation tube insertion was a predictor of children at-risk of repeat ventilation tube insertion