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Ensitrelvir, a 3C-like protease inhibitor, received emergency approval in Japan in November 2022 for treating non-hospitalized patients with mild-to-moderate COVID-19. However, confirmation of its real-world clinical effectiveness is limited.

In this review, we provide an overview of food allergy genetics and epigenetics aimed at clinicians and researchers. This includes a brief review of the current understanding of genetic and epigenetic mechanisms, inheritance of food allergy, as well as a discussion of advantages and limitations of the different types of studies in genetic research. 

Cow's milk allergy is rare in exclusively breastfed infants. To support the continuation of breastfeeding an infant after diagnosis with a cow's milk allergy, it is critical to examine the evidence for and against any form of cow's milk elimination diet for lactating mothers. In this narrative review, we highlight the lack of high-quality evidence, hence subsequent controversy, regarding whether the minuscule quantities of cow's milk proteins detectable in human milk cause infant cow's milk allergy symptoms.

Allergic sensitization and reduced ability to respond to viral infections may contribute to virus-induced wheeze and asthma development in young children. Plasmacytoid dendritic cells (pDC) are rare immune cells that produce type I interferons (IFN-I) and play a key role in orchestrating immune responses against viruses. 

Peanut allergy is the most common childhood-onset, persistent food allergy. Peanut oral immunotherapy (OIT) is a potential treatment, but few studies prospectively examine the outcome of peanut OIT in young children using parent-measured doses compared to standard care (peanut avoidance).

Allergic diseases are rising worldwide, especially in childhood, and their clinical diversity increasingly exposes the limits of traditional phenotype-based classifications. Genetic susceptibility, environmental exposures, epithelial barrier biology, and immune pathways interact to shape highly variable disease trajectories and treatment responses. In this context, precision medicine is no longer only an aspirational concept, but a practical effort to define meaningful endotypes, identify clinically useful biomarkers, and connect biological insight to prevention and care.

The prevalence of allergic diseases across the Australian population, in all regions and age groups, is not well documented. This study aimed to describe the prevalence and distribution of five allergic diseases (allergic rhinitis, asthma, drug allergy, eczema, and food allergy) and examine differences by sociodemographic factors. 

Rates of anaphylaxis in early childhood are rising, yet there remains a paucity of data on age-specific presentations and outcomes. While prompt treatment is essential, symptoms can differ from older children. Observation after stabilization is routinely used; however, no infant and toddler-specific data guide the duration of monitoring. Identifying predictors of biphasic anaphylaxis could help guide observation times.

The first peanut oral immunotherapy (OIT) for children was approved by the US Food and Drug Administration (FDA) in 2020. While clinical efficacy is established, evidence on cost-effectiveness-whether the benefits outweigh the costs and adverse effects-remains limited. A variant of OIT, known as probiotic and peanut OIT (PPOIT), has shown similar efficacy in trials.

Meta-analyses of randomized controlled trials have found that introducing eggs and peanuts earlier during infancy reduced egg and peanut allergy risk. Hence, infant feeding advice has dramatically changed from previous recommendations of avoidance to current recommendations of inclusion of common food allergens in infant diets.