One Health framing pushes antimicrobial resistance beyond the hospital wall
Antimicrobial resistance has outgrown the narrow idea that it begins and ends with prescribing behavior inside hospitals. The syndrome now sits at the intersection of human medicine, veterinary practice, agriculture, environmental contamination, sanitation, poverty, and policy failure. In that setting, antimicrobial stewardship cannot function as a single-discipline exercise. It has to operate as a coordinated public health strategy that links clinicians with microbiologists, veterinarians, agricultural experts, policy makers, economists, data scientists, and community leaders.
A stakeholder engagement effort led by the Africa One Health Network for Disease Prevention placed that argument at the center of discussion during the 15th CUGH annual conference in San Francisco. Up to 100 in-person attendees contributed perspectives spanning medicine, microbiology, anthropology, veterinary science, crop science, modeling, economics, and policy. Their discussion was not organized around abstract theory. It focused on the practical drivers of antimicrobial resistance and on the structural changes needed to slow its spread before routine infections become harder and costlier to treat.
AMR emerges when antimicrobial exposure exerts selective pressure across multiple reservoirs at once. Human prescribing matters, but so do agricultural use patterns, veterinary treatment practices, polluted water sources, waste contamination, weak sanitation, and the social conditions that force communities into repeated infections and repeated antibiotic access. In that context, stewardship becomes a systems problem rather than a pharmacy problem. The biological logic is straightforward: every unnecessary exposure gives resistant organisms another chance to survive, multiply, and move between hosts, food systems, and the environment.
Stakeholder engagement exposed a wider map of resistance drivers
The stakeholder process used audio recording, transcription, and manual analysis guided by pre-determined themes: key achievements, challenges, and recommendations for multi- and inter-sectoral approaches to AMS and AMR. That structure mattered because it forced the discussion away from siloed complaints and toward shared accountability. Participants identified the need for collaborative education, research, policy, and community engagement across the human and animal health sectors and beyond them into wildlife, agriculture, trade, tourism, urbanization, and immigration.
One sentence captures the scale of the problem: resistant organisms do not respect professional boundaries.
A hospital can reduce inappropriate prescribing and still fail if contaminated water, poor sanitation, or uncontrolled antibiotic use in animals continues to seed resistant organisms into the broader environment. Environmental stressors such as industrial, agricultural, domestic, and healthcare waste create persistent selection pressure and dispersal routes that make resistance difficult to contain. Poverty and inadequate water, sanitation, and hygiene infrastructure intensify that cycle by increasing infection burden and reducing the ability of communities to avoid unsafe antimicrobial exposure.
The paper places responsibility with academic research institutions and governments to build multi-sectoral and inter-sectoral collaborative systems that are visible well before the point of crisis. That includes education, surveillance, policy alignment, and community engagement. It also means recognizing that the same antimicrobial class may be used in different ways across human health, animal health, and food production, with consequences that compound over time rather than appearing in a single clinic visit.
Human, animal, and environmental health now share the same resistance burden
The One Health model fits AMR because the ecology of resistance is inherently connected. Antibiotics selected in veterinary medicine can influence resistant organisms entering the food chain or the environment. Agricultural use can shape microbial populations in soil and water. Healthcare waste can expose nearby communities to resistant strains. Urbanization and migration add further movement across borders and between populations, accelerating spread when surveillance is fragmented.
A narrow stewardship model cannot account for those transfers. In practical terms, a clinician counseling a patient about antibiotic adherence is acting within only one segment of a much larger chain. The upstream determinants may lie in livestock management, contaminated runoff, informal access to antibiotics, or weak regulation of pharmaceutical disposal. The downstream consequences may appear as treatment failure, prolonged illness, more expensive second-line therapy, or the need for broader-spectrum agents that further drive resistance.
The conference engagement emphasized that prevention requires shared language and shared goals. Microbiologists and modelers bring detection and forecasting; veterinarians and agriculturalists bring insight into animal and crop systems; economists can quantify incentives and barriers; anthropologists can explain behavior and trust; policy makers can convert evidence into regulation and implementation. Each discipline sees only a portion of the resistance pathway. Combined, they map the entire chain.
Stewardship depends on policy alignment, not isolated clinical discipline
The recommendations emerging from the discussion point toward a more integrated architecture for stewardship. Academic institutions need to train professionals who understand AMR as a cross-sector threat. Governments need policies that align infection prevention, prescribing standards, environmental protections, and agricultural regulation. Community engagement must be built into those efforts because public behavior, health-seeking patterns, and local trust determine whether stewardship measures are followed or bypassed.
This is where implementation often fails. Antibiotic access rules, veterinary practice norms, food production incentives, and waste management policies can pull in different directions if they are designed separately. When that happens, hospitals may be asked to carry the burden of resistance control while other sectors continue to create selection pressure. The result is predictable: more resistant infections, less reliable first-line therapy, and greater strain on health systems already operating under resource constraints.
The paper’s central message is not subtle. AMR is not a hospital-only problem and not a clinician-only problem. It is a multi-sectoral public health threat that demands coordination across the human and animal health sectors, environmental systems, and the policy structures that govern them. Without that alignment, stewardship remains too narrow to match the biology of resistance.
Surveillance gaps and waste exposure remain central obstacles
The discussion also points to the need for stronger surveillance across sectors. Resistance patterns can shift silently in wastewater, farms, clinics, and communities long before they are visible in routine hospital data. Environmental monitoring, agricultural oversight, and human clinical surveillance need to be linked if policy makers want an early warning system rather than a delayed response. In the absence of that integration, the first sign of trouble may be treatment failure after resistant organisms have already circulated widely.
Waste contamination deserves particular attention because it creates a persistent exposure route. Industrial, domestic, agricultural, and healthcare waste can all carry antimicrobial residues or resistant organisms. Those exposures do not behave like isolated events; they create repeated low-level pressure that favors survival of resistant strains. The pathophysiology is evolutionary as much as clinical, with microbial populations adapting under constant antimicrobial pressure across environments.
For clinicians, the implication is direct. Stewardship programs must connect to broader systems if they are going to preserve the usefulness of existing drugs. For governments and academic centers, the task is to build collaborative structures that can translate evidence into coordinated action across human health, animal health, agriculture, trade, tourism, urban planning, and migration policy. The paper leaves little room for a narrower interpretation: without multi-sectoral collaboration, AMR will continue to expand as an emerging epidemic rather than recede as a manageable threat.