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Wednesday, April 8, 2020

Avian Influenza

Avian Influenza
Avian Influenza
Avian Influenza is a contagious viral infection which can affect all species of birds.In poultry rearing system usually the most affected species.
Free living birds may carry influenza viruses without becoming ill due to a natural resistance.
.Etiology/Causative agent:
The virus causing influenza is an Influenzavirus.A virus of family orthomyxoviridae.
Influenza A virus infecting poultry can also be divided on the basis of their pathogenicity< ability to cause disease
.Sign and Symptoms of Avian Influenza:
.Transmission of Avian Influenza:
The most common primary introduction of AI viruses into an area is by wild birds usually waterfowl.
Direct contact between wild birds and poultry is not necessary for introduction of virus into poultry farms.
AI also transmit through infected feces into an area.
Machanically AI virus also be transmitted.
.Vaccination of Avian Influenza:
Vaccination against AI may be used to supplement the control measures carried out after confirmation of disease.
Protection is principally mediated by an immune responce to the subtype-specific hemagglutinin protien.Vaccination of AI minimize the clinical signs of disease like dorp in egg production etc.AI vaccines are produced by different technologies HA protien in vactored system.
Avian Influenza

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