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Of the two known serotypes of IBDV, only '''Serotype I''' is pathogenic, causing bursal disease in '''chicks''' by '''selectively''' infecting the cells of the '''[[Bursa of Fabricius]]'''.
Of the two known serotypes of IBDV, only '''Serotype I''' is pathogenic, causing bursal disease in '''chicks''' by '''selectively''' infecting the cells of the '''[[Bursa of Fabricius]]'''.
−
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 [http://www.oie.int (OIE)]
==Signalment==
==Signalment==