Artificial Intelligence (AI) is transforming public health, presenting both opportunities and ethical and legal challenges. This study adopts an interdisciplinary approach, integrating legal doctrinal analysis, public health ethics, AI governance scholarship and a scoping review of international legal instruments to evaluate and operationalize three core pillars: ethical accountability, regulatory adaptability and transparency. Through a scoping review of treaties, regional regulations and policy frameworks, the study maps jurisdictional gaps and proposes an adaptive public law framework that addresses critical shortcomings in existing AI governance models, such as the WHO’s limited enforceability and the GDPR’s rigid data-sharing rules. The framework introduces scalable, region-specific regulations to enhance interoperability while respecting local governance needs. Its human-centric design, modular regulation and accountability mechanisms ensure adaptability across diverse legal, cultural and health system contexts. Informed by case studies and a thematic synthesis of global best practices, this framework offers policymakers and practitioners a structured yet flexible approach to balancing AI-driven innovation with ethical imperatives, promoting equitable public health outcomes.

The family Brachycladiidae (Digenea) is a species-rich taxon restricted to marine mammals, well-known for its associated pathogenic load, but otherwise poorly understood. A major gap in our knowledge is their circulation pathways, as the life cycle has been elucidated only for a single brachycladiid species, Orthosplanchnus arcticus, a parasite of pinnipeds. Our goal was to determine whether small ocellate metacercariae previously reported from the Barents Sea edible cockles (Cerastoderma edule) belong to the brachycladiids. We searched for brachycladiid metacercariae in nine bivalve species across three sub-Arctic Seas. They were found in three cardiid species (Ciliatocardium ciliatum, C. edule, and Serripes groenlandicus) and a scallop, Chlamys islandica. Surprisingly, we discovered numerous brachycladiid metacercariae in a single infected whelk, Buccinum undatum. Obtained molecular genetic data (mitochondrial and nuclear ribosomal) indicated that all these metacercariae belong to O. arcticus. We used statistical analysis to explore potential preferences for the second intermediate hosts in this brachycladiid species. The results suggest that bivalve size, rather than species, more accurately predicts infection patterns with O. arcticus metacercariae. We also found no significant differences in morphology between metacercariae from different bivalve species. As such, O. arcticus exhibits broad specificity for the second intermediate hosts, with larger bivalve individuals showing higher infection rates. We discuss the factors underlying this broad specificity, the benefits of larger bivalve preference, and the unequal contribution of different hosts in the transmission of a parasite. Finally, we highlight the potential zoonotic risk associated with O. arcticus due to human consumption of its intermediate hosts.

This cross-sectional study evaluated the nutritional composition and labelling of commercial foods in Canada targeted to infants up to 18 months of age. Front-of-package labelling requirements were assessed based on daily values identified by Health Canada for saturated fatty acids, sugars, and sodium for children aged one year and older. Infant commercial food products were identified from online and in-person records of retailers across Canada. A total of 1,010 products were identified. Products aimed at older infants (12–18 months) contained significantly more calories, macronutrients, sugars, saturated fat, and trans fat compared to those targeted at younger infants (<12 months). In addition, 40% of products for children aged 12–18 months required a ‘high in sugar’ front-of-package label, while less required a ‘high in saturated fats’ (13%) and ‘high in sodium’ (5%) label. Organic products had higher added sugar and fibre, while they were lower in calories, total fat, saturated fat, and protein. Plant-based products, including vegetarian/vegan products, contained fewer calories, fat, saturated fat, trans fat, and protein, but more fibre. Gluten-containing products had more calories, macronutrients, sugar, fibre, and saturated fat. Non-GMO labelled products had more calories, carbohydrates, and sugar, but less saturated fat. Significant differences were observed for vitamins and minerals across food categories (p < 0.05). Our findings offer valuable guidance for parents, caregivers, and healthcare professionals on infant nutrition, highlighting the importance of selecting foods that align with infants’ specific dietary needs.

Since the escalation of hostilities in Gaza in October 2023, the health care system has been overwhelmed by mass casualties, infrastructure damage, and supply shortages. Amid these conditions, septic amputations have emerged as a desperate, life-saving measure for patients with severe limb wound infections. This article examines the rise of such procedures, drawing from contextual analysis and firsthand cases at Al-Aqsa Martyrs’ Hospital. It also highlights doctors’ observation of how delayed access to care, lack of sterile tools, antibiotic shortages, and multidrug-resistant infections have often made limb salvage impossible. These amputations, while medically necessary, reflect the collapse of trauma care and underscore the urgent need for adaptable humanitarian intervention, standards, and call for the protection of health care facilities and services continuity.

Nineteenth-century sanitary and burial reform were motivated by public health concerns and transformed the Victorian landscape with two forms of new infrastructure: sewers and out-of-town cemeteries. However, the history of burial reform ‘always sat awkwardly’ (in the words of Julie Rugg) with that of sanitary reform. In this article, we re-examine the campaigning career of George Alfred Walker (1807–84), a surgeon-apothecary who made public health the core of his argument for burial reform, to demonstrate that burial and sanitary reform were deeply intertwined via sanitary science, politics and science communication. We argue that Walker represented city graveyards as a nuisance similar to poor sewerage, utilising Thomas Southwood Smith’s heterodox fever theory to make his argument amenable to Edwin Chadwick’s goals and solutions: infrastructure ahead of poor relief. Walker’s solutions gave the medical profession positive reasons to support sanitary reform, as they proffered much-needed employment via burial reform. At the same time, his extremely active and varied campaigning throughout the 1840s took inspiration and strategy from the broader sanitation movement. By providing a comprehensive account of his campaigning for the first time, we show that sanitary reform politics was central to changing British burial management as a contested scientific theory was utilised to fit political ends.

Anonymous online surveys using financial incentives are an essential tool for understanding sexual networks and risk factors including attitudes, sexual behaviors, and practices. However, these surveys are vulnerable to bots attempting to exploit the incentive. We deployed an in-person, limited audience survey via QR code at select locations in North Carolina to assess geolocation application use among men who have sex with men to characterize the role of app usage on infection risk and behavior. The survey was unexpectedly posted on a social media platform and went viral. Descriptive statistics were performed on repeat responses, free-text length, and demographic consistency. Between August 2022 and March 2023, we received 4,709 responses. Only 13 responses were recorded over a 6-month period until a sharp spike occurred: over 500 responses were recorded in a single hour and over 2,000 in a single day. Although free-text responses were often remarkably sophisticated, many multiple-choice responses were internally inconsistent. To protect data quality, all online surveys must incorporate defensive techniques such as response time validation, logic checks, and IP screening. With the rise of large language models, bot attacks with sophisticated responses to open-ended questions pose a growing threat to the integrity of research studies.

The Secretary of the US Department of Health & Human Services, Robert Kennedy Jr is leading a political agenda against vaccination. This is undermining the delivery of life-saving vaccination programmes and provision of evidence-based information on the safety and effectiveness of vaccines for the public and health professionals. Inconsistent and conflicting messaging between health practitioners and government health agencies erodes trust in public health programmes, creating a vacuum which is often filled with mis/disinformation that presents severe consequences for families. Due to the transnational spread of diseases, we consider the implications of events in the US for routine childhood vaccination programmes in the UK. Public health agencies across the world need to be ‘Kennedy ready’; pragmatic steps must be taken to mitigate threats posed to vaccine confidence and the control of vaccine preventable diseases.

The ageing population is anticipated to encounter several challenges related to sustainability. While policies such as ageing in place can benefit older adults in terms of familiarity and independence, these policies can also lead to increased social isolation. To facilitate ageing in the right place, it is crucial to understand how the design of environments promotes social sustainability. This article presents a scoping review of empirical research focused on the characteristics of housing and surrounding environments that support social integration, cohesion and participation of older adults. The search strategy was conducted in five databases, resulting in 20,477 articles. After screening 7,550 titles and abstracts based on predetermined inclusion and exclusion criteria, 19 articles were selected. The findings of these articles are presented across three themes: (1) housing environments, (2) environments beyond the home and (3) the social environment. Although there is no one-size-fits-all housing model for older adults, the authors suggest that ageing in place policies should be reconceptualized as ageing in ‘places’ and ‘spaces’, emphasizing the diversity of social needs of older adults. Understanding the environmental characteristics, the role of accessible and safe environments beyond the home, and how people and culture support a sense of belonging provides a policy direction for how to design socially sustainable environments for older adults in the future.