Scoring System for Lesions Induced by Different Strains of Newcastle Disease Virus in Chicken

Table 8

Lesion scoring (0-3) induced by vNDV in HE stained tissues of proventriculus, thymus, and heart collected from hr 2 till day 5 pi.

	Hr 2 pi	Hr 4 pi	Hr 6 pi	Hr 12 pi	Day 1 pi	Day 2 pi	Day 4 pi	Day 5 pi
Brain	00± 00(3)	00± 00(3)	0.00±0.00(3)	0.00±0.00(3)	00± 00(3)	0.00± 0.00(3)	0.33± 0.33(3)	0.60± 0.31(3)
Caecal tonsil	00± 00(3)	0.20± 0.20(3)	0.47±0.07(3)	1.33±0.07(3)	1.20± 0.12(3)	2.00± 0.12(3)	2.00± 0.07(3)	2.13± 0.12(3)
Liver	00± 00(3)	00± 00(3)	00± 00(3)	00± 00(3)	0.40±0.40(3)	0.53± 0.07(3)	2.13± 0.07 (3)	2.13± 0.07(3)
Intestine	00± 00(3)	00± 00(3)	00± 00(3)	00± 00 (3)	00± 00(3)	0.07± 0.07(3)	2.00± 0.12(3)	2.27± 0.07(3)
Lung	00± 00(3)	00± 00(3)	00± 00(3)	00± 00(3)	0.60± 0.60(3)	1.47± 0.07(3)	2.07± 0.07(3)	2.33± 0.07(3)

Note. Values in brackets represent the number of chickens. Hr indicates hour. pi indicates postinoculation of the virus. Control group tissues scored 0.