Inhibition of Quorum Sensing-Controlled Virulence Factors and Biofilm Formation in Pseudomonas aeruginosa by Culture Extract from Novel Bacterial Species of Paenibacillus Using a Rat Model of Chronic Lung Infection

Table 2

Microscopic lung pathology among experimental rats.

Experimental groups (number of rats)	Microscopic lung pathology
	Chronic inflammation; Number (%)	Score I; Number (%)	Score II; Number (%)	Score III; Number (%)	Score IV; Number (%)
Negative control (12)	0	12 (25%)	0	0	0
Positive control (12)	12 (25%)	0	0	2 (4.16%)	10 (20.83%)
Comparative control (12)	6 (12.5%)	1 (2.08%)	5 (10.4%)	4 (8.33%)	2 (4.16%)
Extract treatment (12)	6 (12.5%)	0	6 (12.5%)	5 (10.4%)	1 (2.08%)
Total (48)	18 (37.5%)	13 (27.08%)	11 (22.91%)	11 (22.91%)	13 (27.08%)