Detection and molecular characterization of infectious bronchitis virus isolated from recent outbreaks in broiler flocks in Thailand.

ABSTRACT: Thirteen field isolates of infectious bronchitis virus (IBV) were isolated from broiler flocks in Thailand between January and June 2008. The 878-bp of the S1 gene covering a hypervariable region was amplified and sequenced. Phylogenetic analysis based on that region revealed that these viruses were separated into two groups (I and II). IBV isolates in group I were not related to other IBV strains published in the GenBank database. Group 1 nucleotide sequence identities were less than 85% and amino acid sequence identities less than 84% in common with IBVs published in the GenBank database. This group likely represents the strains indigenous to Thailand. The isolates in group II showed a close relationship with Chinese IBVs. They had nucleotide sequence identities of 97-98% and amino acid

SUBMITTER: Pohuang T 

PROVIDER: S-EPMC2801127 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature