Researchers conducted a prospective comparison of three hand-washing techniques —unstructured, WHO-recommended and a novel technique, called the WHO shortened repeated technique to remove C. diff. The study included 10 participants who performed each technique. Their hands were contaminated with a nontoxigenic strain containing 90 percent C. diff spores
The median effectiveness of the unstructured, WHO and WHO-SR techniques in log10 colony forming unit reduction was 1.30, 1.71 and 1.70, respectively.
The study shows washing hands with a structured technique was more effective than washing with an unstructured technique. Additionally, the WHO-SR technique was significantly more effective than the unstructured technique.
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