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→Introduction
==Introduction==
==Introduction==
[[File:Gumboro.jpg|thumb|200px|right|Bursa of Fabricius in Acute disease, 5 days after infection and 8 days post infection (left to right). Source - Intervet at [http://www.gumboro.com/]]
Infectious bursal disease is a '''highly contagious [[Viruses | viral]]''' disease of birds caused by an avibirnavirus.
Infectious bursal disease is a '''highly contagious [[Viruses | viral]]''' disease of birds caused by an avibirnavirus.
This disease is '''notifiable''' to the World Organisation for Animal Health [www.oie.int/ (OIE)]
This disease is '''notifiable''' to the World Organisation for Animal Health [www.oie.int/ (OIE)]
==Signalment==
==Signalment==
IBDV can infect chickens, ducks, geese and guineafowl but only '''chickens''' show clinical signs of disease.
IBDV can infect chickens, ducks, geese and guineafowl but only '''chickens''' show clinical signs of disease.