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ISOM 2023 research Panel 4 - Diagnostics and microbiology of otitis media

To identify and review key research advances from the literature published between 2019 and 2023 on the diagnosis and microbiology of otitis media (OM) including acute otitis media (AOM), recurrent AOM (rAOM), otitis media with effusion (OME), chronic suppurative otitis media (CSOM) and AOM complications (mastoiditis). 

Egg-sensitised infants have elevated CD4+ effector memory T regulatory cells from birth

IgE-mediated sensitisation to egg is common in infants. In some cases, the processes leading to egg sensitisation are established in early life, even before introduction to solid foods. The underlying mechanisms remain poorly understood. 

Immunogenicity and Safety of a 2 + 1 DTPa Priming Schedule in Australian Infants and the Impact of Maternally Derived Antibodies on Pertussis Antibody Responses up to 4 Years of Age

We assessed the impact of maternally derived pertussis antibodies on infant responses to a 2 + 1 vaccine schedule (6 weeks, 12 weeks, and 12 months). Infants with baseline antibodies showed lower IgG responses following the primary vaccination series, but this did not impair booster responses at 4 years of age.

Evaluating the impact of the ‘Blow, Breathe, Cough’ health promotion intervention in resolving otitis media with effusion in children: An adaptive randomized-controlled trial protocol

Otitis media with effusion (OME) affects hearing, speech development, and quality of life (QoL) in children. The 'Blow, Breathe, Cough' (BBC) intervention promotes nasal, respiratory, and middle ear clearance through nose blowing, deep breathing, coughing, and hand hygiene. It shows promise in resolving OME but lacks randomized-controlled trial (RCT) evaluation. This paper presents a RCT protocol evaluating BBC's effect on OME resolution, hearing, speech, and QoL in children aged two to seven years.

Minimising antibiotic use through prevention of childhood ear infections

Otitis media (OM), or middle ear infection, is one of the most common childhood illnesses globally. In Australia, OM remains a leading cause of antibiotic prescriptions in children, despite growing awareness of antimicrobial resistance (AMR) and the need for stewardship. Preventing OM not only reduces the burden of disease but also plays a critical role in curbing unnecessary antibiotic use and slowing the rise of AMR.

Panel 8: Vaccines and immunology

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

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

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

Evidence of functional cell-mediated immune responses to nontypeable Haemophilus influenzae in otitis-prone children

These data provide evidence that otitis-prone children do not have impaired functional cell mediated immunity

Moraxella catarrhalis Restriction-Modification Systems Are Associated with Phylogenetic Lineage and Disease

We observed an association between Type III DNA methyltransferase presence and Otitis Media-associated middle ear isolates