Evolution and expansion of the One Health approach to promote sustainable and resilient health and well-being: A call to action

Design framework to develop sustainable innovations for addressing One Health challenges

The complexity of global health challenges requires integrated approaches that crosses traditional boundaries. One Health (OH) offers a holistic approach to address health issues at the crossroads of human, animal, and environmental domains. Antimicrobial Resistance (AMR), a prime example of a cross-sectoral issue and OH challenge, highlights the need for coordinated interventions that consider multiple stakeholders. Current approaches to improve OH challenges and AMR have limited success, often due to a lack of a structured theoretical approach that informs the design and development of solutions for long-term sustainability. Existing frameworks focus primarily on human or veterinary sectors in isolation, leaving a gap in comprehensive, integrated approaches that align with OH principles. The proposed framework addresses this gap by offering a structured approach to both implementing and evaluating interventions that consider all three sectors. This paper proposes the HEARTf of OHC (Holistic Engagement and Adaptive Responses Theoretical framework of One Health challenges), a user-centered design approach aimed at developing sustainable and innovative OHC interventions. The HEARTf of OHC integrates knowledge from social sciences, computer science, industrial design, pedagogy, and health sciences to create context specific solutions that address the specific needs of end-users in the human, animal, and environmental sectors. Additionally, this paper reviews existing frameworks addressing AMR, identifies limitations and outlines the need for a transdisciplinary approach when tackling OHC. By emphasizing the importance of the user-centered design, transdisciplinarity, and continuous evaluation, the HEARTf of OHC aims to bridge the gap between current strategies and improve the development and evaluation of innovative solutions or services. The HEARTf of OHC is a generalizable framework for the design, implementation, and evaluation of OH interventions, where we use AMR as a case study to demonstrate its application.

Mapping Research Priorities for Climate Change Adaptation in Agriculture: A One Health Perspective

BACKGROUND

The climate emergency poses significant threats to agricultural productivity, the health and economic prospects of agricultural workers, and animal welfare. This requires development and implementation of adaptation strategies to mitigate the impact in the long-term. The purpose of this study was to identify and map research priorities for climate change adaptation in agriculture, focusing on protecting the health of agricultural workers and livestock animals.

METHODS

Based on the One Health framework, we utilized a participatory, mixed-method approach called group concept mapping. In 2023, 20 faculty members from various disciplines at a land-grant university were recruited through email and purposive sampling, based on group concept mapping methodology. Fifteen faculty members brainstormed ways to reduce health risks for agricultural workers and livestock in the Pacific Northwest amid climate change. Forty ideas were sorted and rated for importance and feasibility by 11 and 10 faculty, respectively.

FINDINGS

Multidimensional scaling yielded five clusters: wildfire smoke impacts, basic science, forecasting extreme weather, tradeoffs, and occupational health and labor. Key research areas include studying wildfire smoke's effects on agricultural products, animals, and workers, and identifying adaptive strategies for climate change's impact on humans and livestock. Overall, 25% included all three pillars of the One Health framework.

CONCLUSIONS

Most research directions were focused on risk management, with limited emphasis on the One Health framework.

APPLICATION TO PRACTICE

Transdisciplinary collaboration is needed to apply a One Health approach in climate adaptation efforts for agriculture and can be enhanced through transdisciplinary education and training opportunities.

Managing the risks of emerging contaminants-establishing a national strategy guided by Indigenous perspectives

Chemicals play an important role in maintaining our quality of life. Unfortunately, inappropriate chemicals and waste management result in the accumulation of contaminants in our environment that pose a risk to exposed biota and humans. Being cognizant of Indigenous knowledge and values within the management of chemicals and waste represent key components of environmental justice, but they are not being included in current global programs. Here, we describe the process leading to the development of an independent and nonpartisan national strategy to manage emerging contaminants in New Zealand that is reflective of Māori cultural perspectives. An inclusive partnership-based approach was used to capture a broad selection of views and perspectives to provide opportunities to engage with representatives from a range of sectors including scientists, members of the wider community, and Māori partners for the development of the strategy. A series of workshops was held over several years that helped refine the strategy document to ensure that it was fit for purpose with a clear implementation pathway to maximize uptake and achieve the inspirational shared vision. This initiative highlighted the need to invest significant time and effort up front to develop strong relationships across sectors required for success. All parties involved must operate with respect to ensure that advantages and reciprocity of all knowledge systems are recognized and valued to achieve objectives for chemical sustainability.

How studies on zoonotic risks in wildlife implement the one health approach - A systematic review

Background

The recent COVID-19 pandemic and the emergence of infectious diseases at the human-animal interface highlight the global challenge of mitigating zoonotic risks. The One Health approach emphasizes the interconnectedness of human, animal, and environmental health, urging for holistic and interdisciplinary strategies in disease prevention. Despite growing interest, the attention to wildlife in pandemic prevention remains limited. This systematic literature review aims to evaluate recent One Health research on zoonotic diseases and wildlife in terms of study design, interdisciplinary collaboration, and participatory approaches. Key questions addressed include the consideration of One Health domains, disciplinary involvement, and the inclusion of non-academic stakeholders.

Methods

Following PRISMA guidelines, PubMed and Web of Science were searched for primary research papers on zoonotic diseases and wildlife from 2018 to 2023. Eligibility criteria included a focus on wildlife, zoonotic diseases, and adoption of the One Health approach.

Results

A total of 228 primary research papers were retrieved. Out of these, 105 studies were included in the review. Few studies integrated human, animal, and environmental domains simultaneously in data collection (4.8 %) and knowledge generation (29.5 %). While extensive knowledge was generated for animal health (97.1 %) and human health (84.8 %), environmental health (34.3 %) remained underrepresented. Laboratory methods predominated (82.9 %), with limited integration of social science methodologies (19 %). The majority were epidemiological studies (86.7 %), yet analytical design within these was sparse (17.1 %). Participation of non-academic stakeholders was limited (36.2 % included non-academics; 3.8 % encompassed participative approaches).

Conclusions

The synthesis of the domains human, animal and environmental health remained fragmentary in the studies reviewed. Environmental health is underrepresented and the interdisciplinary involvement of social sciences lacks. Neglecting these fields of competence impedes comprehensive understanding of disease dynamics and hampers effective zoonosis prevention strategies. In result, greater inter- and transdisciplinary collaboration, along with participatory approaches, are still needed for advancing One Health research.

One Health governance: theory, practice and ethics

One Health approach is a global public good (GPG) that invites governance to maximize the health of humans, animals, and the environment by shaping interdisciplinary and cross-sectoral collaboration. This paper explores the theoretical foundations, practical applications, and ethical considerations of the One Health governance architecture. At the theoretical level, One Health governance invites systems thinking and involves collaborative efforts among multiple stakeholders, applying across multi-layered scenarios and requires public-private partnership (PPP). This governance architecture transcends traditional anthropocentrism and shifts towards ecocentrism, highlighting the integrity of ecosystems and the deep prevention of diseases. Selected case studies illustrate the implementation of One Health initiatives, such as shared water resources, disease surveillance programmes, and sustainable environmental health interventions, demonstrating the added value of a collaborative efforts across sectors and regions. Ethical considerations are integral to decision-making and actions of One Health governance, with a focus on equity, inclusivity and accountability, providing moral guidelines to prioritize the health of vulnerable populations and ecosystems. Through these efforts, One Health governance is expected to improve public health globally, promote sustainable development, and achieve a harmonious coexistence of human, animal, and environmental health.

Linkages between Soil Security and One Health: implications for the 2030 Sustainable Development Goals

Soil provides multiple and diverse functions (e.g., the provision of food and the regulation of carbon), which underpin the health of animals, humans, the environment and the planet. However, the world's soils face existential challenges. To this end, the concept of Soil Security was developed, compelled to: "maintain and improve soils worldwide so that they can continue to provide food, fiber and fresh water, contribute to energy and climate sustainability and help to maintain biodiversity and the overall protection of ecosystem goods and services." In parallel, the concept of One Health likewise works across the human-animal-environment interface, highly relevant for the goals of Soil Security. In this review, we evaluated the roles which both the Soil Security and One Health concepts have served in the literature between 2012 and 2023 and explore the potential linkages between both concepts. We outline that both concepts are used in disparate fields, despite considerable overlap in aims and objectives. We highlight the Soil Health concept as a potential connector between Soil Security and One Health. Overall, we argue that both Soil Security and One Health are highly complementary fields of scientific inquiry with solid leverage for translation into policy and practice. However, there is a need to define One Health dimensions, as has been done for Soil Security. As such, we proffer five measurable dimensions for One Health, the "5Cs"-Capacity, Condition, Capital, Connectivity and Codification-to allow for an overall measure of One Health. Finally, we advocate for a biosphere-focused framework to collectively make progress toward the 2030 Sustainable Development Goals and other global existential challenges.

Mapping Research Trends in One Health: A Comprehensive Review

The One Health approach, which emphasizes the interconnection between human, animal, plant, and environmental health, has gained significant attention as a framework for addressing global health challenges. This study presents a thorough bibliometric analysis of One Health research, utilizing the Web of Science Core Collection database, covering the period from 1989 to 2024. The analysis uncovers a substantial increase in scientific output over the years, reflecting the growing importance of this interdisciplinary field. The research reveals a notable shift in focus from traditional areas such as microbiology and infectious diseases to broader public health issues, including healthcare management, policy development, and food security, with particular attention to plant health, crop production, and the use of pesticides. Through advanced tools like Biblioshiny and VOSviewer, this study identifies prolific authors, leading journals, and emerging research themes shaping the One Health domain. The findings highlight the critical role of international collaboration in advancing this field and underscore the need for interdisciplinary approaches in both established and emerging research areas. By offering a comprehensive overview of the current landscape, this bibliometric evaluation serves as a valuable guide for researchers, policymakers, and stakeholders, emphasizing the essential role of One Health in developing strategies to combat complex health issues on a global scale.

One health: a structured review and commentary on trends and themes

BACKGROUND

One Health (OH) is defined as a unifying approach aiming to sustainably balance and optimise the health of people, animals and the ecosystem. It recognises that the health of humans, animals (both domestic and wild), plants and the wider ecosystem are both interdependent and linked. As a concept, it aims to address complex problems requiring input from multiple disciplines. Suitable issues for OH approaches typically include global issues which can widely impact not only the health of humans and animals, but also have a significant environmental impact. Examples include emerging zoonotic diseases and antimicrobial resistance (AMR). Interpretations and use of the term OH differ in the literature and have the potential to dilute its impact. The meaning of OH among the research community has evolved over time. Here, we collate the OH relevant literature from the last two decades, identifying major themes and trends and considering how OH has been embraced differently across various geographical regions.

METHODS AND RESULTS

Bibliographic databases were searched using the term "One Health" AND ("Veterinary" OR "Animal") AND ("Medicine" OR "Human") AND ("Environment" OR "Ecosystem") during the period between 1980 and 2022. Data analysis and narrative synthesis identified themes, similarities, and differences within literature. Web of Science and PubMed returned 948 and 1250 results for the period mentioned above. The predominant literature focused on human health, with veterinary health second, although often to benefit human health. It was found that OH is often utilised as a public health approach, generally towards the end of disease surveillance and control. Interestingly, while authors from low- and middle-income countries were well-represented within studies using the term OH, they were less well-represented as corresponding authors.

CONCLUSIONS

The predominant focus of the literature was on human and veterinary health, implying OH approach is human-orientated, despite its suggestion that all domains share a common 'health'. Potential improvement to OH could be achieved through greater incorporation of the environmental and social sciences for a more encompassing approach.

Buruli ulcer, tuberculosis and leprosy: Exploring the One Health dimensions of three most prevalent mycobacterial diseases: A narrative review

ΟBJECTIVES: Although Buruli ulcer, tuberculosis, and leprosy are the three most common mycobacterial diseases, One Health dimensions of these infections remain poorly understood. This narrative review aims at exploring the scientific literature with respect to the presence of animal reservoir(s) and other environmental sources for the pathogens of these infections, their role in transmission to humans and the research on/practical implementation of One Health relevant control efforts.

METHODS

The literature review was conducted using the online databases PubMed, Scopus, ProQuest and Google Scholar, reviewing articles that were written in English in the last 15 years. Grey literature, published by intergovernmental agencies, was also reviewed.

RESULTS

For the pathogen of Buruli ulcer, evidence suggests possums as a possible animal reservoir and thus having an active role in disease transmission to humans. Cattle and some wildlife species are deemed as established animal reservoirs for tuberculosis pathogens, with a non-negligible proportion of infections in humans being of zoonotic origin. Armadillos constitute an established animal reservoir for leprosy pathogens with the transmission of the disease from armadillos to humans being deemed possible. Lentic environments, soil and other aquatic sources may represent further abiotic reservoirs for viable Buruli ulcer and leprosy pathogens infecting humans. Ongoing investigation and implementation of public health measures, targeting (sapro)zoonotic transmission can be found in all three diseases.

CONCLUSION

Buruli ulcer, tuberculosis and leprosy exhibit important yet still poorly understood One Health aspects. Despite the microbiological affinity of the respective causative mycobacteria, considerable differences in their animal reservoirs, potential environmental sources and modes of zoonotic transmission are being observed. Whether these differences reflect actual variations between these diseases or rather knowledge gaps remains unclear. For improved disease control, further investigation of zoonotic aspects of all three diseases and formulation of One Health relevant interventions is urgently needed.

Thinking Beyond Disease Silos: Dysregulated Genes Common in Tuberculosis and Lung Cancer as Identified by Systems Biology and Machine Learning

The traditional way of thinking about human diseases across clinical and narrow phenomics silos often masks the underlying shared molecular substrates across human diseases. One Health and planetary health fields particularly address such complexities and invite us to think across the conventional disease nosologies. For example, tuberculosis (TB) and lung cancer (LC) are major pulmonary diseases with significant planetary health implications. Despite distinct etiologies, they can coexist in a given community or patient. This is both a challenge and an opportunity for preventive medicine, diagnostics, and therapeutics innovation. This study reports a bioinformatics analysis of publicly available gene expression data, identifying overlapping dysregulated genes, downstream regulators, and pathways in TB and LC. Analysis of NCBI-GEO datasets (GSE83456 and GSE103888) unveiled differential expression of CEACAM6, MUC1, ADM, DYSF, PLOD2, and GAS6 genes in both diseases, with pathway analysis indicating association with lysine degradation pathway. Random forest, a machine-learning-based classification, achieved accuracies of 84% for distinguishing TB from controls and 83% for discriminating LC from controls using these specific genes. Additionally, potential drug targets were identified, with molecular docking confirming the binding affinity of warfarin to GAS6. Taken together, the present study speaks of the pressing need to rethink clinical diagnostic categories of human diseases and that TB and LC might potentially share molecular substrates. Going forward, planetary health and One Health scholarship are poised to cultivate new ways of thinking about diseases not only across medicine and ecology but also across traditional diagnostic conventions.

Circulation of Non-Middle East Respiratory Syndrome (MERS) Coronaviruses in Imported Camels in Saudi Arabia

Background Coronaviruses (CoVs) pose significant health risks to humans, with recent outbreaks like severe acute respiratory syndrome coronavirus (SARS-CoV), Middle East respiratory syndrome coronavirus (MERS-CoV), and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) underscoring their zoonotic potential. Dromedary camels (Camelus dromedarius) have been implicated as intermediate hosts for MERS-CoV, prompting heightened surveillance efforts. This study aims to identify non-MERS-CoV CoVs in imported camels at the Jeddah seaport, Saudi Arabia, using molecular techniques. Methods Camel nasal swabs (n = 337) were collected from imported dromedary camels arriving at the Jeddah Islamic seaport from Sudan and Djibouti. Samples were tested for CoVs using real-time real-time reverse transcription polymerase chain reaction (RT-PCR) targeting the RNA-dependent RNA polymerase gene. Positive samples were confirmed by conventional RT-PCR and Sanger sequencing. Selected samples underwent RNA sequencing to identify viral genomes. The study underscores the importance of molecular surveillance in camels to mitigate zoonotic risks. Results Out of 337 camel samples tested, 28 (8.30%) were positive for CoVs, predominantly from camels imported from Djibouti, compared to Sudan (13.39% vs. 5.78%). Sequence analysis confirmed the presence of non-MERS CoVs, including camel alpha-coronavirus and human CoV-229E-related strains. These findings highlight potential viral diversity and transmission risks in imported camel populations. Conclusion This study identifies diverse CoVs circulating in imported dromedary camels at the Jeddah Islamic seaport, Saudi Arabia, underscoring their potential role in zoonotic transmission. Enhanced surveillance and collaborative efforts are essential to mitigate public health risks associated with novel coronavirus strains from camel populations.

One World, One Health: Zoonotic Diseases, Parasitic Diseases, and Infectious Diseases

When we take into account how the boundaries between human, animal, and environmental health are inextricably linked and increasingly intertwined, it comes as no surprise that the One Health approach has assumed an unprecedented level of importance over the past decade [...].

Advancing the concept of global oral health to strengthen actions for planetary health and One Health

Advancing the concept of global oral health can help tackle the triple planetary crises of climate change, nature and biodiversity loss, and pollution and waste. A model for oral and planetary health places more explicit focus on understanding the state of the Earth's systems, changing environment in relation to planetary health boundaries and their impact on human well-being. This can facilitate a planet-centric critical thinking for equity in global oral health that contributes to UN 2030 Agenda for Sustainable Development.

Microbiome One Health model for a healthy ecosystem

The attention on microbiome research and its translation to application deployment is escalating along with diffused hype. There is real excitement in this new science, leveraging the growing potential of advances in molecular biology and sequencing techniques. Yet, despite the substantial efforts provided by the scientific communities, the true significance of research achievements requires coordinated and constructive actions across interdisciplinary fields. Individual researchers, universities, small and large companies, venture capitalists, and governments play a fundamental role in fostering collaboration and promoting knowledge that will benefit each other and sustain global prosperity. Making meaningful connections across different fields and getting a new perspective on how technological developments interrelate are the main drivers for creativity and progress. To help the broader innovation community focus on potentially new cross-sectorial developments, the One Health-microbiome-centric approach, defined here as "Microbiome One Health " , is considered as the efficient, holistic approach to product and service exploitations meant to preserve human well-being within a healthy ecosystem. The model opposes the biomedical system and generalizes the "One World-One Health ™" concept. The focus will be given to Nutrition as a driver of health and the food system for its commercial exploitation microbiome-centric, specifically at the interface of human/animal/agricultural. Remarkably, at the interface of humans/animals, the interaction with pets, specifically dogs, has been recognized as a driving force of novel microbiome exploitation.

More than a meat- or synthetic nitrogen fertiliser-substitute: a review of legume phytochemicals as drivers of 'One Health' via their influence on the functional diversity of soil- and gut-microbes

Legumes are essential to healthy agroecosystems, with a rich phytochemical content that impacts overall human and animal well-being and environmental sustainability. While these phytochemicals can have both positive and negative effects, legumes have traditionally been bred to produce genotypes with lower levels of certain plant phytochemicals, specifically those commonly termed as 'antifeedants' including phenolic compounds, saponins, alkaloids, tannins, and raffinose family oligosaccharides (RFOs). However, when incorporated into a balanced diet, such legume phytochemicals can offer health benefits for both humans and animals. They can positively influence the human gut microbiome by promoting the growth of beneficial bacteria, contributing to gut health, and demonstrating anti-inflammatory and antioxidant properties. Beyond their nutritional value, legume phytochemicals also play a vital role in soil health. The phytochemical containing residues from their shoots and roots usually remain in-field to positively affect soil nutrient status and microbiome diversity, so enhancing soil functions and benefiting performance and yield of following crops. This review explores the role of legume phytochemicals from a 'one health' perspective, examining their on soil- and gut-microbial ecology, bridging the gap between human nutrition and agroecological science.