Infectious bursal disease

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Infectious bursal disease

LANGUAGE: ENGLISH

Author(s): Emmanuel Baraza Sasita
Release date: 2014
ISBN: 978-84-942976-9-4
Pages: 76
Binding: Paperback, wire-o
Format: 17 x 11

Infectious bursal disease (also known as Gumboro disease) is a highly contagious viral disease caused by a small, hardy Avibirnavirus belonging to the family Birnaviridae which causes significant economic losses due to mortality, reduced performance and immuno-supression that lead to increased susceptibility to other diseases. The virus is resistant to a wide range of temperature and pH, although can be removed by most disinfectants. It is rapidly spread by direct contact between birds and can survi-ve for extended periods of time on inanimate objects, contaminated feed, etc. Currently, the disease has a worldwide prevalence and therefore it is not completely controlled. It is essential to know its main features to minimise the great economic impact which repre-sents for poultry farming. Thus, as veterinary surgeons have to face with this condition in their daily work, this hand-book performs a thorough review where the authors, highly qualified and experienced in dealing with this disease, supply visual resources (images, tables, flowcharts, etc.) accompanied by short pieces of text to describe the topic in an understandable and simple way. Therefore, the information included in this handbook helps the veterinarians to get overview of the topic so as to tackle it successfully day after day.


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Emmanuel Baraza Sasita

BSc, MSc, PhD (currently involved).

Bachelor of Science in Biomedical Laboratory Technology and MSc in Molecular Biology and Biotechnology both from the Faculty of Veterinary Medicine of Makerere University. Currently, he is pursuing his PhD in virology. He has done recently a publication related to the prevalence of infectious bursal disease in local chickens around Kampala (Uganda). Besides, he works as academic writer, editor and reviewer. He works for academiaresearch based in USA as well as all writers based in UK. He reviews manuscripts with Microbiology Research International (www.netjournals.org). Currently, he is working in a project about contagious caprine pleuropneumonia at International Livestock Research Institute.

William Olaho-Mukani

BVM, MSc, PhD.

EAC Regional Veterinary Governance Project Coordinator for the African Union.

Member of the Editorial Board of the African Journal of Animal and Biomedical Sciences, Journal of Camel Practice and Research, the Bulletin of Animal Health and Production.

Sabenzia Nabalayo Wekesa

BVM, MSc, PhD.

Researcher and Senior Assistant Director of Veterinary Services (SADVS) in the ministry of Agriculture in Kenya, based at the National Foot and Mouth Disease (FMD) laboratory, Embakasi (Nairobi).

Romona Ndanyi

BVM, MSc.

Researcher at the Kabete Veterinary Research Laboratories, Kangemi (Nairobi).

Messo Watson

BVM, MSc.

Working in a fully integrated poultry company in East and Central Africa.

1. Aetiology
	Overview
	IBD virus (IBDV)
	Classification
	Viral protein structure and function
	IBDV particle
	Genome
	Gene expression
	Replication
2. Importance
	History
	Current status in the world
	Economic significance
	Poultry production and its contributions
	Effects on poultry
	Impact on food security
	How IBDV causes disease and death

3. Epidemiology
	Distribution and persistence
	Geographical distribution
	Serological survey
	IBD status
	New epidemiological situation
	Morbidity and mortality
	Characteristics in the environment

4. Pathology
	Type of birds at risk
	Transmission
	Incubation period
	Pathogenesis
	Potential risk of spread through trade

5. Clinical signs
	Factors influencing disease severity
	Clinical signs associated with acute disease
	Classical form
	Immunosuppressive form
	Acute form
	What next after subclinical infection
	Relationship between clinical signs and diagnosis

6. Diagnosis and treatment
	Clinical and differential diagnosis
	Histological diagnosis
	Post-mortem examination
	Serological diagnosis
	Molecular identification and characterization
	Sampling

7. Prevention and control
	Disinfection
	Vaccination
	Vaccination programmes
	Routes of vaccine administration
	Categories of IBD vaccines
	Advices for vaccinating chickens

8. Actions to take
	Measures taken to reduce morbidity and
	mortality during an outbreak
	Recommended actions after an outbreak

9. References

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Infectious bursal disease

Infectious bursal disease

LANGUAGE: ENGLISH

Author(s): Emmanuel Baraza Sasita
Release date: 2014
ISBN: 978-84-942976-9-4
Pages: 76
Binding: Paperback, wire-o
Format: 17 x 11

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