scholarly journals ANÁLISE FILOGENÉTICA DE ISOLADOS DO VÍRUS DA BRONQUITE INFECCIOSA AVIÁRIA (VBI) NO BRASIL COM BASE NA SEQUÊNCIA 3’-TERMINAL DO GENE DA NUCLEOPROTEÍNA / PHYLOGENETIC ANALYSIS OF ISOLATES OF AVIAN INFECTIOUS BRONCHITIS VIRUS (IBV) IN BRAZIL BASED ON THE ...

2013 ◽  
Vol 29 (4) ◽  
pp. 2
Author(s):  
M. F. S. MONTASSIER ◽  
M. M. BORZI ◽  
R. M. SANTOS ◽  
K. R. SILVA ◽  
F. F. SANTOS ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Infectious Bronchitis Virus ◽  
Avian Infectious Bronchitis Virus ◽  
Infectious Bronchitis

scholarly journals Phylogenetic analysis of avian infectious bronchitis virus isolates from Morocco: a retrospective study (1983 to 2014)

2017 ◽  
Vol 32 (2) ◽  
pp. 155-158 ◽  
Author(s):  
Siham Fellahi ◽  
Mehdi El Harrak ◽  
Slimane Khayi ◽  
Jean-Luc Guerin ◽  
Jens H. Kuhn ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Retrospective Study ◽  
Infectious Bronchitis Virus ◽  
Avian Infectious Bronchitis Virus ◽  
Infectious Bronchitis ◽  
Virus Isolates

Comparative Evaluation of In Vitro and In Vivo Assays for the Detection of Avian Infectious Bronchitis Virus as a Contaminant of Live Poultry Vaccines

1998 ◽  
Vol 26 (5) ◽  
pp. 629-634
Author(s):  
Emiliana Falcone ◽  
Edoardo Vignolo ◽  
Livia Di Trani ◽  
Simona Puzelli ◽  
Maria Tollis
Keyword(s):  
Infectious Bronchitis Virus ◽  
Serological Response ◽  
Avian Infectious Bronchitis Virus ◽  
Animal Testing ◽  
Rt Pcr ◽  
Pcr Assay ◽  
In Vivo Test ◽  
Infectious Bronchitis

A reverse transcriptase polymerase chain reaction (RT-PCR) assay specific for identifying avian infectious bronchitis virus (IBV) in poultry vaccines, and the serological response to IBV induced by the inoculation of chicks with a Newcastle disease vaccine spiked with the Massachusetts strain of IBV, were compared for their ability to detect IBV as a contaminant of avian vaccines. The sensitivity of the IBV-RT-PCR assay provided results which were at least equivalent to the biological effect produced by the inoculation of chicks, allowing this assay to be considered a valid alternative to animal testing in the quality control of avian immunologicals. This procedure can easily be adapted to detect a number of contaminants for which the in vivo test still represents the only available method of detection.

scholarly journals Genomic Analysis of Avian Infectious Bronchitis Viruses Recently Isolated in South Korea Reveals Multiple Introductions of GI-19 Lineage (QX Genotype)

Viruses ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1045
Author(s):  
Hyuk-Chae Lee ◽  
Sol Jeong ◽  
Andrew Y. Cho ◽  
Kyu-Jik Kim ◽  
Jun-Young Kim ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
South Korea ◽  
Infectious Bronchitis Virus ◽  
Economic Burden ◽  
Genomic Analysis ◽  
Multiple Introductions ◽  
Infectious Bronchitis ◽  
South Korean ◽  
Phylogeographic Analysis ◽  
The Past

Infectious bronchitis virus (IBV) was first identified in the 1930s and it imposes a major economic burden on the poultry industry. In particular, GI-19 lineage has spread globally and has evolved constantly since it was first detected in China. In this study, we analyzed S1 gene sequences from 60 IBVs isolated in South Korea. Two IBV lineages, GI-15 and GI-19, were identified in South Korea. Phylogenetic analysis suggested that there were six distinct subgroups (KM91-like, K40/09-like, and QX-like I to IV) of the South Korean GI-19 IBVs. Among them, QX-type III and IV subgroups, which are phylogenetically different from those reported in South Korea in the past, accounted for more than half of the total. Moreover, the phylogeographic analysis of the QX-like subgroups indicated at least four distinct introductions of GI-19 IBVs into South Korea during 2001–2020. The efficacy of commercialized vaccines against the recently introduced QX-like subgroups should be verified, and continuous international surveillance efforts and quarantine procedures should be enhanced to prevent the incursion of viruses.

Avian infectious bronchitis virus: isolation of an apparently new variant in Italy

2000 ◽  
Vol 146 (7) ◽  
pp. 191-193 ◽  
Author(s):  
A. Zanella ◽  
R. Coaro ◽  
R. Marchi ◽  
G. Fabris ◽  
A. Lavazza
Keyword(s):  
Infectious Bronchitis Virus ◽  
Virus Isolation ◽  
Avian Infectious Bronchitis Virus ◽  
Infectious Bronchitis ◽  
New Variant
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