|  | Environmental outcomes | Clinical outcomes | ||||
---|---|---|---|---|---|---|---|
 | Micro-organism | Range of effect of all studies | Range of effect of stat. sign. findings | Number of studies | Range of effect of all studies | Range of effect of stat. sign. findings | Number of studies |
Viruses | Norovirus | Â | Â | Â | Â | Â | Â |
Bacteria | Acinetobacter | 73–100% reduction | 73% reduction |  |  |  | |
 | CPE |  |  |  |  |  |  |
 | ESBL |  |  |  |  |  |  |
 | MRSA | 11.1% increase to 100% reduction | 98.1% reduction | 68% reduction |  | 1 [41] | |
 | VRE | 6.4–100% reduction |  | 79.3% reduction | 79.3% reduction | 1 [41] | |
Spores | C. difficile | 100% reduction | 100% reduction | 37–63% reduction | 37–60% reduction | ||
Yeast | C. auris | Â | Â | Â | Â | Â | Â |