S1 gene sequence analysis of a nephropathogenic strain of avian infectious bronchitis virus in Egypt.

ABSTRACT:

Background

Infectious bronchitis is highly contagious and constitutes one of the most common and difficult poultry diseases to control. IBV is endemic in probably all countries that raise chickens. It exists as dozens of serotypes/genotypes. Only a few amino acid differences in the S1 protein of vaccine and challenge strains of IBV may result in poor protection. Tropism of IBV includes the respiratory tract tissues, proventriculus and caecal tonsils of the alimentary tract, the oviduct and the kidney.

Results

Infectious bronchitis virus (IBV) strain closely related to Massachusetts (Mass) serotype was isolated from broiler chickens suffering from severe renal and respiratory distresses. The isolate was serologically identified by Dot-ELISA and further characterized by RT-PCR

SUBMITTER: Abdel-Moneim AS 

PROVIDER: S-EPMC1592083 | biostudies-literature | 2006 Sep

REPOSITORIES: biostudies-literature