Table 1.

Scoring system to quantify Haemophilus influenza [NTHi] pathogenicity in the CGS-chinchilla model.

Otologic Score	0	1	2	3	4
Degree of otoscopic changes (inflammation)	None	Mild	Moderate	Frank purulence	Tympanic membrane rupture
Systemic Score	0	0.5	1	2	3	4
Systemic description	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 1/2 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 Supportive treatment given (fluids and Buprenex)	Extremely lethargic Extremely ataxic Not able to maintain an upright position Barely moving around cage Dyspnea Sacrificed