Avian infectious bronchitis
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Avian infectious bronchitis

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Infectious bronchitis is an acute and highly contagious respiratory disease of chickens characterised by respiratory signs comprising gasping, coughing, sneezing, tracheal rales and nasal discharge. In addition, severe respiratory distress may occur in young chickens. Respiratory distress, decrease in egg production, and loss of internal egg quality and egg shell quality have been reported in layers. Some strains of the virus produce severe kidney damage and may be associated with high mortality. Moreover, this pathology is considered to have worldwide distribution, so it is not contro-lled totally. Knowing its most hazardous features is required to minimise the great impact which has in poultry farming. According to the current situation, it is essential to review and update this severe problem. The authors have developed a complete review in a didactic and graphic way, including images, tables, graphs, etc., accompanied by a short text, to make the handbook more understandable and affordable. This precise information will help the veterinarians to know everything about this topic and tackle it properly.

Cintia Hiromi Okino

Graduated in Veterinary Medicine and concluded MS and PhD in Veterinary Pathology at São Paulo State University (UNESP- Brazil).

Dr. Okino works at the Avian Virology Laboratory, Embrapa Swine and Poultry, a Brazilian Agricultural Research Corporation, where she develops research on avian respiratory viruses (Avian Infectious Bronchitis virus, Avian Metapneumovirus, Newcastle disease virus and Avian Influenza virus). The research includes evaluation of Immune Responses and Molecular Diagnostics for these diseases. She has published articles about Avian Infectious Bronchitis virus in national and international journals and she won the “José Maria de Lammas Filho award” in 2013 during the Brazilian Poultry Sciences meeting (FACTA).

Maria de Fátima Silva Montassier

Graduated in Pharmacy Sciences from Universidade Federal de Pernambuco (UFPE Brazil), she concluded MS in Microbiology at Sao Paulo State University (UNESP- Brazil) and PhD in Microbiology at Institute of Biomedical Sciences - University of São Paulo (USP-Brazil).

Dr. Montassier has developed post-doctoral research at the Viral Immunology Laboratory, Sao Paulo State University (UNESP- Brazil), where she is involved on studies of viral isolation and genome sequencing of Avian Infectious Bronchitis virus. She has published several articles about Avian Infectious Bronchitis virus in national and international journals.

Monique Silva de França

Graduated in Veterinary Medicine from São Paulo State University (UNESP - Brazil) and concluded PhD in Veterinary Pathology at University of Georgia (USA). She is board certified by the American College of Poultry Veterinarians and American College of Veterinary Pathologists.

Dr. França is an Assistant Professor at Poultry Diagnostic and Research Center at University of Georgia (USA), where she is involved with diagnostic service for the poultry industry, research and teaching. She has published several articles about various avian diseases in international journals.

H. L. Shivaprasad

Graduated in Veterinary Sciences from University of Agricultural Sciences (India), he concluded MS and PhD in Physiology and Genetics at the Poultry Science Department, The Ohio State University (USA) and MS in Pathology at Purdue University (USA). He is board certified by the American College of Poultry Veterinarians.

Dr. Shivaprasad is a Professor of Avian Pathology at the California Animal Health and Food Safety Laboratory System, University of California, Davis (USA), where he is involved with diagnostic service, teaching and research. He was the senior author of the best manuscript published on Veterinary Pathology Journal in 2011. He has travelled to more than 30 countries on invitation primarily for teaching.

Hélio José Montassier

Graduated in Veterinary Medicine at São Paulo State University (UNESP-Brazil), he concluded MS and PhD in Microbiology at Institute of Biomedical Sciences - University of São Paulo (USP-Brazil) and post-doctoral research at Institute for Animal Health (UK).

Dr. Montassier is an Associate Professor of Veterinary Immunology at UNESP, where he develops research on avian respiratory viruses, including evaluation of immune responses, development of vaccines, molecular diagnosis and protein expression in different vectors. He has published several articles about viral immunology in international journals and book chapters.

Igor Leonardo dos Santos

Graduated in Veterinary Medicine and concluded MS in Veterinary Pathology at São Paulo State University (UNESP - Brazil).

He is technical manager of Animal Health innovation area, looking for development and application of new products and services on the Brazilian Poultry industry. He has large experience of technical services, monitoring avian vaccine protection and identification of challenge by avian pathogens on the field, including avian necropsies and field biosecurity.

Raquel Rubia Rech

Graduated in Veterinary Medicine from Universidade do Estado de Santa Catarina (UDESC-Brazil), she concluded MS and PhD in Veterinary Pathology at Universidade Federal de Santa Maria (UFSM-Brazil).

She is a Clinical Assistant Professor at the Department of Veterinary Pathobiology - Texas A&M University (USA), where she teaches general and systemic pathology to veterinary and graduate students. Her primary focus in research is to explore pathogenesis of infectious diseases, using various pathologic techniques, especially immunohistochemistry. She has published several articles about pathobiology in national and international journals.

1. Introduction

2. IBV variability

IBV variants

Classification of IBV strains

IBV genotypes

IBV serotypes

IBV pathotypes

IBV protectotypes

3. Immune responses

Innate immune responses

Adaptive immune responses

Cell-mediated (CMI) and humoral immune responses

Decay of maternal antibodies

Humoral immune responses

Importance of memory CMI and humoral immune responses

4. Clinical signs, pathology andpathogenesis

Clinical signs

Pathology and pathogenesis

Macroscopic lesions

Microscopic lesions

IBV cell tropism

5. Specimen sampling and diagnostic methods

Bird selection

Blood sampling

Swab sampling

Necropsy and tissue sampling

Filter card paper

Diagnostic methods

Viral isolation

Molecular methods

Immunohistochemistry

Serological methods

6. Prevention and vaccine failure

IBV vaccines

Oculo-nasal vaccination route (live attenuated vaccine)

Spray vaccination (live attenuated vaccine)

Drinking water vaccination (live attenuated vaccine)

Injectable vaccination (inactivated vaccine)

Vaccine failure

IBV vaccines worldwide

7. References

9788416315000
  • Idioma Inglés
  • Año de edición 2014
  • Autor/es Cintia Hiromi Okino, Hulimangala L. Shivaprasad, Hélio José Montassier, Igor Leonardo dos Santos, Maria de Fátima Silva Montassier, Monique Silva de França
  • Nº Páginas 88
  • Encuadernación Soft cover. Wire-o
  • Tamaño 17 X 11

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