H9N2 avian influenza A viruses (AIVs) cause economic losses in the poultry industry and
provide internal genomic segments for the evolution of H5N1 and H7N9 AIVs into more …

Abstract The clade 2· 3· 4· 4 H5Nx is a highly pathogenic avian influenza (HPAI) virus, which
first appeared in China and has spread worldwide since then, including Korea. It is divided …

Background/Objective: Highly pathogenic (HP) H5Nx and low-pathogenicity (LP) H9N2
avian influenza viruses (AIVs) pose global threats to the poultry industry and public health …

For the development of an optimized Egyptian H9N2 vaccine candidate virus for poultry,
various recombinant Egyptian H9N2 viruses generated by a PR8-based reverse genetics …

Worldwide, high pathogenic avian influenza viruses belonging to clades 2.3. 4.4 and 2.3. 2.1
have been circulating in both poultry and wild birds. Since 2018, Korea has built a national …

Abstract We developed A/PR/8/34 (PR8) virus-based reverse genetics system in which six
internal genes of PR8 and attenuated hemagglutinin and intact neuraminidase genes of …

Clade 2.3. 4.4 c H5N6 avian influenza A viruses (AIVs) may have originally adapted to infect
chickens and have caused highly pathogenic avian influenza (HPAI) in poultry and human …

Since 2007, highly pathogenic clade 2.3. 2 H5N1 avian influenza A (A (H5N1)) viruses have
evolved to clade 2.3. 2.1 a, b, and c; currently only 2.3. 2.1 c A (H5N1) viruses circulate in …

TÓM TẮT Đề tài “Đánh giá tình hình lưu hành vi-rút Cúm gia cầm tại khu vực lân cận Thành
phố Hồ Chí Minh và khả năng bảo hộ của vắc-xin Navet-Fluvac 2 đối với vi-rút Cúm gia cầm …

The present invention relates to an mammalian non-pathogenic, highly-productive-in-
embryonated-egg, heat-resistant, and attenuated clade 2.3. 4.4 c H5N6 recombinant …