What is an antimicrobial stewardship program and how does it apply across sectors?

• A. A program restricting antibiotic use only in agriculture.
• B. A coordinated approach to optimize antimicrobial use, including guidelines, surveillance, infection prevention, and education across human, animal, and environmental health.
• C. A program to ban all antibiotics in healthcare.
• D. A patient-only program focusing on human hospitals.

Answer: (B)

Antimicrobial stewardship programs are about coordinating efforts to optimize how antimicrobials are used, with the goal of improving patient outcomes while reducing resistance, adverse events, and unnecessary costs. The best answer captures this by describing a comprehensive, cross-sector approach that includes guidelines for prescribing, surveillance of antibiotic use and resistance, infection prevention measures, and education—implemented across human health, animal health, and the environment. This cross-sector view reflects the One Health reality: resistance can move between people, animals, and the environment through food, water, and direct contact, so coordinated actions are needed in all domains.

In practice, this means developing evidence-based prescribing guidelines, monitoring antimicrobial prescribing and resistance patterns, promoting infection prevention and vaccination to reduce infections, and educating clinicians, veterinarians, farmers, and the public about responsible use. It also requires collaboration among physicians, pharmacists, veterinarians, microbiologists, public health professionals, and environmental health experts to align policies and actions.

Other options are too narrow or unrealistic: restricting use only in agriculture misses the human and environmental sides; banning all antibiotics in healthcare is not feasible or safe; and focusing only on patients in hospitals ignores stewardship needs in outpatient, veterinary, and community settings.