Detection of variant infectious bronchitis viruses in broiler flocks in Libya

Awad, Faez; Baylis, Matthew; Ganapathy, Kannan

doi:10.1016/j.ijvsm.2014.01.001

Cited by 41 publications

(36 citation statements)

References 14 publications

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“…A similar finding was recently reported in 253 samples from Libyan broiler flocks in 2012 [9]. Phylogenetic comparisons showed separate clustering 254 from the type strain, with all KG16 and KG33 strains sharing a close homology.…”

Section: Genotype According To Country 136supporting

confidence: 87%

Genotypes of infectious bronchitis viruses circulating in the Middle East between 2009 and 2014

2015

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Section: Genotype According To Country 136supporting

confidence: 87%

Genotypes of infectious bronchitis viruses circulating in the Middle East between 2009 and 2014

2015

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“…In Libya, 12 IBV strains obtained from broiler flocks with respiratory disease and high mortality were differentiated by sequencing of the S1 gene. Sequences from one farm formed a cluster, with 100% relatedness to Eg/CLEVB-2/IBV/012 and IS/ 1494/06 (Awad et al, 2014). Kahya et al detected eight Turkish IBVs from samples of broiler and breeder chicken flocks in 2011; all eight IBV isolates were related to that of EU780077 (IS/1494/06 IBV strain) with 99% identity.…”

Section: Discussionmentioning

confidence: 99%

Phylogenetic analysis and full-length characterization of S1 gene of IS-1494 (Variant 2) like infectious bronchitis virus isolates, Iran, 2015

et al. 2016

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Infectious bronchitis virus (IBV), a major pathogen of commercial poultry flocks, circulates in the form of different genotypes. Three IB viruses were isolated from broiler chickens showing respiratory and renal lesions. The isolates were characterized by reverse transcriptase polymerase chain reaction and sequence analysis of the Full-length of the S1. Three isolates were belonged to Variant 2 like (IS/1494 like) IBV genotype. Phylogenetic analysis showed that Variant 2 like isolates formed two clusters and the Iranian and Iraqi isolates were included in the cluster II. Cluster I composed of Israeli, Egyptian and Turkish Variant 2 like IBV Isolates. Three hyper variable regions (HVR) of S1 were determined. The Most variation was seen in HVR2. The findings emphasize the importance of continuous monitoring of IBV, in addition to adjust diagnostic methods, molecular epidemiological studies, development and use of vaccines which are adapted to the changing disease scenario.

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“…IBV was first detected in Libya in 2012, and the phylogenetic data of the gene S1 show a co-circulation of IBV variants in broiler flocks, a part of which have a strong relationship with the Egyptian strains CK/Eg/ BSU-2/2011, CK/Eg/BSU-3/2011, and Eg/1212B, whereas the rest are closely related to the Eg/CLEVB-2/ IBV/012 and IS/1494/06 strains (Awad et al 2014).…”

Section: Infectious Bronchitis In North Africamentioning

confidence: 98%

Avian infectious bronchitis virus in Africa: a review

Khataby¹,

Fellahi²,

Loutfi³

et al. 2016

Veterinary Quarterly

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Infectious bronchitis virus (IBV) is worldwide in distribution, highly infectious, and extremely difficult to control because it has extensive genetic diversity, a short generation time, and a high mutation rate. IBV is a Gammacoronavirus, single-stranded, and positive-sense RNA virus. Avian infectious bronchitis is well studied in European countries with identification of a large number of IBV variants, whereas in African countries epidemiological and scientific data are poor and not updated. However, previous studies reported that an IBV variant continues to appear regularly in Africa, as currently described in Morocco. No cross-protection between IBV strains was reported, some being unique to a particular country, others having a more general distribution. This review aims to provide a general overview on IB disease distribution in African countries and an update on the available studies of IBV variants in each country.

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Detection of variant infectious bronchitis viruses in broiler flocks in Libya

Cited by 41 publications

References 14 publications

Genotypes of infectious bronchitis viruses circulating in the Middle East between 2009 and 2014

Genotypes of infectious bronchitis viruses circulating in the Middle East between 2009 and 2014

Phylogenetic analysis and full-length characterization of S1 gene of IS-1494 (Variant 2) like infectious bronchitis virus isolates, Iran, 2015

Avian infectious bronchitis virus in Africa: a review

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