Cikkszám: 10207
Szerző: Mohamed Faizal Abdul-Careem
Kiadó: EDRA / SERVET
Nyelv: Angol
ISBN: 9788416315017
Megjelenés: 2013
Oldalszám: 80
Kötés: Keménytáblás-cérnafűzött
Illusztrációk: Színes fényképek, táblázatok, diagramok és rajzok
LEÍRÁS:
MD is a lymphomatous and neuropathic disease of domestic birds caused by an alphaher-pesvirus. Fowls get infected by inhalation of infected dust from the poultry houses and the virus is shed from the feather follicle of infected birds. Chickens are the most important natural hosts for MD, which usually takes place at 12-30 weeks of age. Besides, MD is one of the most ubiquitous avian infections. It has been reported in chicken flocks worldwide. Every flock, except those maintained under strict pathogen-free conditions, is presumed to be infected. MD may cause important economic losses through a subclinical decrease in growth rate and egg production. Clinical signs observed include paralysis of the legs and wings and enlargement of peri-pheral nerves. Moreover, chickens may become persistently infected without developing clinical disease. According to the current situation, it is necessary to review and update this severe and widespread problem. To make it easier, the author, a prestigious specialist in this field, has developed a thorough assessment of this topic in a didactic and visual way. Many resour-ces (images, tables, graphs, etc.) have been included to facilitate the comprehension of this disease by the reader. This precise and straightforward information will help the vete-rinarians to know everything about this condition and tackle it properly.
1. Introduction
General definition
Synonyms
Economic significance
History
2. Aetiology
The virus, MDV
Taxonomy
Morphology
MDV evolution
3. Epidemiology
Hosts
Age distribution
Geographic distribution
Environmental persistence
Transmission
Incubation period
Incidence
Mortality
4. Pathogenesis
MDV pathogenesis cycle
Events at respiratory mucosa
Events at bursa of Fabricius
Events at FFE
Latency, transformation and lymphoma
formation
Immunosuppression
5. Clinical manifestations
Clinical manifestations
Nonspecific signs
Transient paralysis
Lymphomas
Other neurological manifestations
Immunosuppression
6. Immunity
Immunity
Innate host responses
Adaptive host responses
7. Diagnosis
Diagnosis
History and clinical signs
Gross postmortem lesions
Histological changes
Immunological techniques
Antibody detection methods (serology)
Antigen detection methods
Virus isolation in cell cultures
Molecular techniques
8. Prevention and control
Control by vaccination
Available vaccines
Hatchery vaccination
Mechanism of protection
Vaccination failure
Management control
Biosecurity
Cleaning and disinfection
Genetic control
9. References
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