IPM Take
This is the right AMR message because it starts earlier than prescribing. Antibiotic misuse often begins when the wrong test is ordered, the right test is delayed, the sample is poor, or the result is ignored. WHO’s manual makes diagnostic stewardship a practical frontline tool, not a laboratory slogan. For patients, that means faster diagnosis, fewer unnecessary antibiotics and a better chance that the treatment chosen actually fits the infection.This is the right AMR message because it starts earlier than prescribing. Antibiotic misuse often begins when the wrong test is ordered, the right test is delayed, the sample is poor, or the result is ignored. WHO’s manual makes diagnostic stewardship a practical frontline tool, not a laboratory slogan. For patients, that means faster diagnosis, fewer unnecessary antibiotics and a better chance that the treatment chosen actually fits the infection.
Executive Summary
On 9 June 2026, WHO’s Western Pacific Regional Office released a media statement on its new practical manual for clinical diagnostic stewardship. The manual is designed to help health-care workers and facilities strengthen AMR response by improving how diagnostic tests are ordered, samples are collected, results are interpreted and clinical action is taken. WHO frames clinical diagnostic stewardship as a way to improve patient management, strengthen AMR surveillance data, reduce low-value care and help infection prevention and control teams detect hospital-associated infections and outbreaks.
Why it matters
- Clinicians: Need diagnostic decisions that support treatment, not reflex testing that produces noise or delay.
- Diagnostics / pathology: Need workflows that connect sample quality, test selection, reporting and clinical interpretation.
- Public authorities: Should treat diagnostic stewardship as part of AMR infrastructure, especially in low- and middle-income settings
Before this manual, AMR stewardship was often discussed through antibiotic prescribing: use the right drug, avoid unnecessary treatment, preserve existing medicines. That is still true, but it is incomplete. The prescribing decision is only as good as the diagnostic pathway behind it.
What WHO adds is a practical definition of clinical diagnostic stewardship: ordering the right diagnostic test, from the right patient, at the right time, using the right sample-collection techniques, then interpreting and acting on results in the right way. That may sound basic. In practice, it is the difference between targeted care and guesswork.
The patient perspective is immediate. A child with sepsis, a woman with a post-surgical infection, a cancer patient with febrile neutropenia or a newborn in intensive care cannot wait for vague AMR policy. They need accurate diagnosis fast enough to guide treatment. Poor diagnostic stewardship can mean delayed treatment, unnecessary antibiotics, missed outbreaks or weak surveillance data.
For IPM, the signal is clear: precision infectious disease starts before the drug. It starts with a usable test result that reaches the clinician in time to change care. AMR policy will fail if it treats diagnostics as an add-on rather than the first gate of responsible treatment.
