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Grading score for the clinical symptoms of CVB1-infected mice.
| Grade | Clinical sign (s) |
|---|---|
| 0 | Healthy |
| 1 | Lethargy and listlessness |
| 2 | Emaciation |
| 3 | Limb weakness |
| 4 | Hair thinning, hunching or weakness in ≥ two limbs |
| 5 | Moribund and death |
CVB1 Coxsackievirus B1.
