Publications by authors named "Tawatchai Pohuang"

Background And Aim: QX-like infectious bronchitis virus (IBV) is a highly infectious avian coronavirus that causes respiratory and kidney disease. It is linked to increased mortality and loss of performance in infected chickens worldwide, including Thailand. Thus, a simple and rapid diagnostic method for the diagnosis of QX-like IBV is needed.

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For the first time, this work demonstrated a recombinant IBDV strain in Thailand.Two genogroups of IBDV were found in Thailand: including HLJ-504-like and recombinant virus.Analysis of the full coding sequence is essential for monitoring emerging variant IBDV.

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Aim: The aim of this study was to characterize from backyard chickens in Khon Kaen Province, Thailand.

Materials And Methods: Tissue samples were collected from backyard chickens suspected to have leucocytozoonosis and subjected to histopathology examination. The BLAST Tool at NCBI GenBank (Basic Local Alignment Research Tools) (http://www.

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The QX-like infectious bronchitis virus (IBV) and variant genotype have been discovered worldwide including Thailand. In order to know the origin of QX-like and variant genotype IBV in Thailand, the genetic analysis on multiple genes was investigated. Seven IBVs including four QX-like and three variant genotype were randomly selected from IBVs isolated in Thailand during 2008 and 2010.

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Infectious bronchitis (IB) causes severe economic losses to the poultry industry worldwide owing to frequent emergence of novel infectious bronchitis virus (IBV) variants, which potentially affect the effectiveness of the currently used IBV vaccine. Therefore, continuous monitoring of IBV genotypes and lineages recently circulating in chickens worldwide is essential. In this study, we characterized the complete S1 gene from 120 IBVs circulating in chickens in Thailand from 2014 to 2016.

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During 2008-2009, fifteen field infectious bronchitis viruses (IBVs) were isolated from commercial chicken farms in Thailand. After sequencing of the complete S1 gene, phylogenetic analysis was performed and this found that the Thai IBV isolates were divided into three distinct groups, unique to Thailand (group I), QX-like IBV (group II), and Massachusetts type (group III). This finding indicated that the recent Thai IBVs evolved separately and that at least three groups of viruses are circulating in Thailand.

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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).

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