EVIDENCE AND CRITERIA
Evidence and evaluation criteria
How we assess sources, context and study limitations for paws, footwear and entrances, distinguishing external evidence from product performance that still needs testing.
1. Define the question and the outcome to measure
Visible dirt, organic residue, pesticides, microbiological presence and health risk are different questions. Evaluation starts with a specific contaminant or objective and a measurement suited to that outcome.
2. Verify sources
We assess peer-reviewed scientific literature, public agencies, standards identified by version and veterinary or professional guidance. A commercial description alone does not demonstrate technical or health performance.
3. Distinguish presence, transfer and risk
Detecting material or microorganisms on a surface does not automatically establish transfer, viability or health risk. A positive PCR detects genetic material; a culture or infectivity assay answers different questions. Chemical residue concentration is distinct from exposure and risk. Conclusions remain limited to what the study measured.
4. Consider methods, samples and context
Setting, sample size, test conditions and measurement methods affect interpretation. Percentages retain their denominators; data retain their year and geographic scope. A healthcare study or a small pilot does not automatically represent a home or an entire population.
5. Use comparable evaluation criteria
A solution should be evaluated against its declared objective, specifying protocol, use conditions, repeatability and limitations. Technical performance, safety, comfort, accessibility, maintenance and usage time are distinct criteria. Evidence about the problem does not demonstrate HYGEN KLINX performance: the project is in development and needs dedicated testing.
6. Update conclusions when evidence changes
New studies, revised standards or test results may change an assessment. When evidence changes, its conclusion, scope of application and remaining uncertainties need to be reconsidered.