Emergence of avian infectious bronchitis in a non-vaccinating country

Pohjola, Leena; Ek-Kommonen, S. Christine; Tammiranta, Niina; Kaukonen, Eija; Rossow, Laila; Huovilainen, T. Anita

doi:10.1080/03079457.2014.913770

Cited by 14 publications

(17 citation statements)

References 34 publications

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“…Surveillance studies in Europe mainly found IBV genotypes 793B, QX-like, Massachusetts, and D274 being the most prevalent ones (Worthington et al, 2008;Krape z, et al, 2011;Pohjola et al, 2014). The genotype Israel strain 2, detected here, was first described in Israel (Meir et al, 2004).…”

Section: Discussionmentioning

confidence: 56%

Research Note: First evidence of infectious bronchitis virus Middle-East GI-23 lineage (Var2-like) in Germany

Fischer¹,

Klosterhalfen²,

Kump³

et al. 2020

Poultry Science

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The infectious bronchitis virus Middle-East GI-23 lineage (Var2-like) was observed on a German broiler farm, for the first time. The animals suffered from respiratory and nephropathogenic disease. Gross lesions observed during necropsy included tracheitis, aerosacculitis, and nephritis.Tracheal swabs were tested positive for infectious bronchitis virus Middle-East GI-23 lineage (Var2like) by PCR. Furthermore, sequence analysis of the S1 spike protein showed close relationship to the commercially available vaccine TAbic IBVAR206 and polish isolates.

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Section: Discussionmentioning

confidence: 56%

Research Note: First evidence of infectious bronchitis virus Middle-East GI-23 lineage (Var2-like) in Germany

Fischer¹,

Klosterhalfen²,

Kump³

et al. 2020

Poultry Science

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“…One or more ectoparasite species was found from 19% of the chickens and one or more endoparasite species was found from 40% of the chickens. Eight of the chickens studied in 2011 were investigated in the case of infectious bronchitis virus and all tested were negative [ 18 ].…”

Section: Resultsmentioning

confidence: 99%

“…Bacteriological cultivation was always performed if colibacillosis was suspected in order to ensure the diagnosis. IB virus was studied using RT-PCR [ 18 ].…”

Section: Methodsmentioning

confidence: 99%

Questionnaire study and postmortem findings in backyard chicken flocks in Finland

et al. 2015

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BackgroundAlthough modern commercial poultry production today is based on large farms and intensive husbandry, keeping backyard poultry has regained popularity in industrialized countries. However, the health status of backyard flocks is still relatively poorly documented. A questionnaire was sent to the owners of 376 backyard poultry flocks (<500 birds) in order to study health management procedures and characterize backyard poultry populations in Finland. Information was also collected on the postmortem findings from non-commercial flocks using necropsy data from the Finnish Food Safety Authority (Evira).ResultsBackyard flocks in Finland are small in size (<50 birds), comprising mainly chickens. Based on the results of the questionnaire, the health of such flocks is good, mortality low and vaccinations are not commonly used. Most of the flocks were registered in the national poultry register. The standard biosecurity practices are not generally applied and contact with wild birds, pets and farm animals is frequent, which can make the flocks more prone to infectious diseases. We conducted an 11-year retrospective study of the postmortem necropsy findings of the Evira in order to document the diseases, which caused mortality in backyard chickens in Finland. Necropsy was performed on a total of 132 non-commercial laying hens during 2000 – 2011. The most common postmortem findings were Marek’s disease (27%) and colibacillosis (17%).ConclusionsThis study is the first to report data on characteristics of and management practices for backyard chicken flocks in Finland. Close connections with commercial flocks are rare and farms are usually distantly located suggesting that the risk that these backyard flocks pose to commercial poultry is low.

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“…QX-like IBV serotypes have been reported in Scotland (Worthington et al, 2008), Italy (Beato et al, 2005), The Netherlands, Poland (Domańska-Blicharz et al, 2007), Slovenia (Krapez et al, 2011), Spain, UK (Valastro et al, 2010;Ganapathy et al, 2012), and Sweden (Abro et al, 2012). Similarly, QX, D274-like and 4/91-like IBV serotypes have recently been reported in Finland where the use of live IBV vaccines is not practiced (Pohjola et al, 2014).…”

Section: Europementioning

confidence: 98%

Global distributions and strain diversity of avian infectious bronchitis virus: a review

Bande

Arshad

Omar

et al. 2017

Anim. Health. Res. Rev.

120

126

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The poultry industry faces challenge amidst global food security crisis. Infectious bronchitis is one of the most important viral infections that cause huge economic loss to the poultry industry worldwide. The causative agent, infectious bronchitis virus (IBV) is an RNA virus with great ability for mutation and recombination; thus, capable of generating new virus strains that are difficult to control. There are many IBV strains found worldwide, including the Massachusetts, 4/91, D274, and QX-like strains that can be grouped under the classic or variant serotypes. Currently, information on the epidemiology, strain diversity, and global distribution of IBV has not been comprehensively reported. This review is an update of current knowledge on the distribution, genetic relationship, and diversity of the IBV strains found worldwide.

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Emergence of avian infectious bronchitis in a non-vaccinating country

Cited by 14 publications

References 34 publications

Research Note: First evidence of infectious bronchitis virus Middle-East GI-23 lineage (Var2-like) in Germany

Research Note: First evidence of infectious bronchitis virus Middle-East GI-23 lineage (Var2-like) in Germany

Questionnaire study and postmortem findings in backyard chicken flocks in Finland

Global distributions and strain diversity of avian infectious bronchitis virus: a review

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