Epidemiology of Infectious Bronchitis Virus

Cook, Jane K.A.; Mockett, A. P. A.

doi:10.1007/978-1-4899-1531-3_15

Cited by 23 publications

(23 citation statements)

References 92 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With a history of clinical respiratory disease and reduced egg production, this suggests that pheasants could be secondary natural hosts for IBV (Cook and Mockett, 1995).…”

Section: Host Rangementioning

confidence: 98%

“…Infection at an early age may cause permanent damage to the reproductive tract leading to a decrease in quantity and quality of eggs (Raj and Jones, 1997;Benyeda et al, 2009;Ganapathy, 2009). Infection in laying birds results in decreases in egg production and the extent of the damage can vary depending on the time of the infection and hens health status (Cook and Mockett, 1995). Affected flocks are unlikely to return to the normal level of production (Benyeda et al, 2009;Ganapathy, 2009).…”

Section: The Diseasementioning

confidence: 99%

“…All age groups, males and females are susceptible to IBV (Cook and Mockett, 1995). The occurrence and severity of the disease is dependent on factors related to the virus, host and environment.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An overview of infectious bronchitis virus in chickens

Awad

Chhabra

Baylis

et al. 2014

World's Poultry Science Journal

View full text Add to dashboard Cite

Infectious bronchitis virus (IBV) is one of the foremost causes of economic loss within the poultry industry. IBV is a commonly occurring, economically significant pathogen of commercial chicken. Economic consequences to the poultry industry comprise mortality, growth retardation and high condemnation rates in meat-type birds. In addition, decreased egg production, reduced internal and external egg quality, and reduced hatchability have been documented in layers and breeders affecting the performance of both meat-type and egg-laying birds. Apart from this some nephro-pathogenic strains cause kidney damage. Secondary pathogens can complicate the disease resulting in increased morbidity and mortality. Being a single stranded RNA virus, IBV has an enormous capacity to change both by spontaneous mutation and by genetic recombination resulting into the emergence of new variants. Since the first isolation of virus in 1937, it has been found almost all over the world. In addition, most countries are now known to have their own indigenous IBV variants. Despite the use of currently available live and inactivated vaccines, one of the most important difficulties to control IB is related to emergence of variant strains. The following paper reviews the current status of research into IBV.

show abstract

“…With a history of clinical respiratory disease and reduced egg production, this suggests that pheasants could be secondary natural hosts for IBV (Cook and Mockett, 1995).…”

Section: Host Rangementioning

confidence: 98%

Section: The Diseasementioning

confidence: 99%

See 1 more Smart Citation

An overview of infectious bronchitis virus in chickens

Awad

Chhabra

Baylis

et al. 2014

World's Poultry Science Journal

View full text Add to dashboard Cite

show abstract

“…Bronchitis Virus (BV) is the type of species of the genus coronavirus of the family coronaviridae. It is an acute and highly contagious viral disease causing severe economic losses for those involved in the chicken industry (Cook and Mockett, 1995;Malik et al, 2004). BV was first reported in the United States as a new respiratory disease for baby chicks in 1931 (Schalk and Hawn, 1931).…”

Section: Introductionmentioning

confidence: 99%

An intelligent device for diagnosing avian diseases: Newcastle, infectious bronchitis, avian influenza

Banakar

Sadeghi

Shushtari

2016

Computers and Electronics in Agriculture

View full text Add to dashboard Cite

a b s t r a c tIn commercial poultry production there are a number of diseases which are of particular importance due to the heavy economic losses that can arise if a flock becomes infected. The development of an automated and rapid disease detection system would therefore be of considerable benefit to both production and animal welfare. This study represents an intelligence device for diagnosing avian diseases by using Data-mining methods and Dempster-Shafer evidence theory (D-S). 14-day-old chickens were divided into four groups. Each group was deliberately infected with a disease: Newcastle Disease (ND), Bronchitis Virus (BV), Avian Influenenza (AI), and the last group was considered as control samples. Fast Fourier Transform (FFT) and Discrete Wavelet Transform (DWT) were used to process the chicken's sound signals in frequency and time-frequency domains, respectively. In order to achieve information, 25 statistical features from frequency domains, and 75 statistical features from time-frequency domains were extracted. During dimensionality reduction stage, the best features of the sound signals were selected, using improved distance evaluation (IDE) method. The chicken's sound signals were analyzed in two consecutive days after virus infection. Support vector machine (SVM) was used as the classifier in this study. The first classification was done with SVM and based on sound features in frequency and time-frequency domains with accuracy of 41.35 and 83.33%, respectively. The accuracy of the method based on D-S infusion of sound data reached 91.15%. The developed model based on achievement result could diagnose Newcastle Disease, Bronchitis Virus and Avian Influenza from sound signals.

show abstract

“…Like the situation in several European countries, we also found that 4/91 and QX-like viruses are the most prevalent. While the latter certainly represent field viruses, the detected 4/91 and D274 strains can most probably be considered vaccine viruses, based on the vaccination history of the respective flocks and the spreading capacity of IBV (Cook and Mockett, 1995). Reoviruses are frequently isolated from clinically normal chickens and the outcome of reovirus infection depends on several factors including age and immune status of the bird, route of exposure, virus pathotype, and interactions with other pathogens.…”

mentioning

confidence: 99%

Survey indicates circulation of 4/91 and QX-type infectious bronchitis viruses in Hungary in 2014 — Short communication

Kiss¹,

Mató²,

Homonnay³

et al. 2015

Acta Veterinaria Hungarica

View full text Add to dashboard Cite

Understanding the epidemiology and improving vaccinal protection against the highly variable chicken infectious bronchitis virus (IBV) requires the knowledge of circulating IBV serotypes/genotypes in defined geographic areas. Accordingly, the authors initiated a survey among the major poultry producers in Hungary in order to reveal the prevailing IBV serotypes in the country. Tracheal swabs and organ samples (caecal tonsils, kidneys, and trachea) were collected from broiler, layer, and meat-type breeder flocks, and were subjected to IBV detection by virus isolation and polymerase chain reaction (PCR). The IBV-positive samples were further characterised by nucleotide sequencing and phylogenetic analysis of a portion of the S1 IBV gene. Seventeen out of the 26 submitted samples proved to be positive for IBV. Sequence analyses revealed ten 4/91 and six QX serotypes, and a single D274 type IB virus. One sample contained a mixture of QX and Massachusetts serotype viruses. Presumably most of the 4/91 and D274 type viruses were vaccine strains. The proportion of QX type viruses and their observed variation are in good agreement with the situation in a few other European countries. The detected viruses clustered largely according to their geographic origin, with a few exceptions. If updated regularly, the preliminary 'virus map' will be useful for the adjustment of vaccination protocols.

show abstract

Epidemiology of Infectious Bronchitis Virus

Cited by 23 publications

References 92 publications

An overview of infectious bronchitis virus in chickens

An overview of infectious bronchitis virus in chickens

An intelligent device for diagnosing avian diseases: Newcastle, infectious bronchitis, avian influenza

Survey indicates circulation of 4/91 and QX-type infectious bronchitis viruses in Hungary in 2014 — Short communication

Contact Info

Product

Resources

About