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. 2008 Apr 9;3(4):e1969. doi: 10.1371/journal.pone.0001969

Table 1. Scoring System to Quantify Streptococcus Pneumoniae Pathogenicity in the Chinchilla.

Otologic Score 0 1 2 3 4
Degree of otoscopic disease none Mild Moderate Frank purulence Tympanic membrane rupture
Systemic Score 0 0.5 1 2 3 4
Systemic Disease normal Slightly lethargic Upright and steady on feet Immediately responds to stimulation by actively moving around cage Eating and drinking Slightly lethargic Upright and steady on feet Head and ears down Responds by actively moving around cage rapidly when stimulated by voice or touch Eating and drinking Eyes ½ open Moderately lethargic Slightly ataxic Able to keep self upright Moving around cage slowly only when stimulated by voice or touch Eating treats and drinking water Same as 2 but not eating or drinking Extremely lethargic Extremely ataxic Not able to maintain an upright position Barely moving around cage Dyspnea Considered Moribund