Genotyping and pathotyping of diversified strains of infectious bronchitis viruses circulating in Egypt

Table 3 Necropsy findings of specific pathogen free chicks infected with infectious bronchitis viruses at one-day-old and the examined survivor and dead birds during the 14 d observation

Group	IBV isolates code	Necropsy
		Trachea				Kidney
		No Lesion	Slight mucin	Excessive mucin	Mucosal congestion	No Lesion	Swelling	Ureate	Congestion
1	IBV-EG/1212B-2012	0	2	5	3	0	6	2	2
2	IBV-EG/IBV1-2011	0	5	3	2	0	5	2	3
3	IBV-EG/11539F-2011	3	6	0	1	10	0	0	0
4	Negative control	10	0	0	0	10	0	0	0

Kidney and trachea score = no of chicks with lesion score of ≥ 1. IBV: Infectious bronchitis virus.