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Scoring system to measure physical activity of mice.
| Appearance characteristics | Score |
|---|---|
| Normal and unremarkable | 5 |
| Slight illness, lethargy, and ruffled fur | 4 |
| Moderate illness, severe lethargy, ruffled fur and hunched back | 3 |
| Severe illness, above signs plus exudative accumulation around partially closed eyes | 2 |
| Moribund state | 1 |
| Death | 0 |
