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Evaluation of the phylogenetic relatedness of 106 genogroup 2 IBDV from seven different countries in South America, Europe and Asia


In recent years, several publications have described the huge impact that the subclinical form of Gumboro disease has had, especially due to the circulation of novel variant strains belonging to genogroup 2 (G2), that might not be controlled with current commercial Del-E Variant type vaccines.

A broad analysis of the characterization and circulation of G2 type viruses in different countries is necessary for a better understanding of the evolution of the virus and the implementation of proper measures to improve the control of the disease worldwide. A total of 106 G2 IBDV nucleotide sequences containing the hypervariable region of the capsid protein VP2 were analysed with the objective of evaluating their phylogenetic relatedness.

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