Atlas entirely dedicated to infectious bursal disease based on a practical and graphic approach of the topic. This handbook has been carried out by highly experienced authors closely involved with this disease in Africa, where its prevalence and incidence are significant. This updated work has been carefully developed including the most essential contents, so that it depicts a valuable tool to cope and control this virus as far as possible. Includes many helpful tips and visual graphic resources provided by the authors to enrich and turn this atlas into a reference in its field. Furthermore, diagnosis and vaccination have been thoroughly explained, highlighting vaccination programmes and types of vaccines. The atlas format helps to make the contents understandable and affordable for the readers.

Authors:

Mohamed Faizal Abdul-Careem

BVSc, MVM, PhD, Diplomate ACPV, Diplomate ACVM (Virology).

Dr. Mohamed Faizal Abdul-Careem is Assistant Professor (virology) at the University of Calgary (Canada) since 2010. He has obtained his basic veterinary degree (BVSc) from the University of Peradeniya (Sri Lanka) and a Master of Veterinary Medicine degree (MVM) from the University of Glasgow Veterinary School (UK) in 1995. He completed his PhD degree from the University of Guelph (Canada) in 2008. His doctoral thesis entitled ‘Characterization of Host Responses Following Marek’s Disease Virus Infection or Vaccination Against Marek’s Disease’. Following his PhD degree, he was awarded a prestigious Canadian Institutes of Health Research Fellowship to conduct post-doctoral research on innate immune responses generated against mucosal viral infections at the Center for Gene Therapeutics of the McMaster University (Canada). He is diplomate of American College of Poultry Veterinarians (ACPV) and American College of Veterinary Microbiologists (ACVM). He has expertise and strong interests in the area of avian viral immunology. He has around 31 manuscripts published in peer-reviewed journals and 90 % of these manuscripts are on avian viral immunology. His research programme at the University of Calgary is supported by grants from Canadian federal, provincial and poultry industry sources such as Natural Sciences and Engineering Research Council of Canada, Alberta Livestock and Meat Agency (ALMA), and Canadian Poultry Research Council. He has established stateof-the-art research facility for his experimental animal and laboratory work at the University of Calgary.

Table of Contents:

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