Emergence of the novel infectious bursal disease virus variant in vaccinated poultry flocks in Egypt.

Momtaz A Shahein,Hesham A Sultan,Ali Zanaty,Amany Adel,Zienab Mosaad, Dalia Said,Ahmed Erfan, Mohamed Samy,Abdullah Selim, Karim Selim,Mahmoud M Naguib, Heba Hassan, Osama El Shazly, Zeinab A El-Badiea, Mahmoud K Moawad, Abdelhafez Samir, Mohamed El Shahaby, Eman Farghaly,Samah Eid, Mohamed N Abdelaziz, Mohamed M Hamoud, Osama Mehana, Naglaa M Hagag,Ahmed Samy

Avian pathology : journal of the W.V.P.A（2024）

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摘要

RESEARCH HIGHLIGHTS:New variant IBDV which emerged in Egypt clustered with Chinese nVarIBDV.nVarIBDV spread subclinically across a wide geographic area.Mutation at 321 represents capsid's most exposed part, a defining feature.Antigenically modified vvIBDV still circulating in Egypt with typical lesions.

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