Construction of recombinant Marek's disease virus (rMDV) co-expressing AIV-H9N2-NA and NDV-F genes under control of MDV's own bi-directional promoter

Construction of recombinant Marek's disease virus (rMDV) co-expressing AIV-H9N2-NA and NDV-F genes under control of MDV's own bi-directional promoter