Genetic Characterization of Highly Pathogenic Avian Influenza Virus (H5N8) in Backyard Poultry Production Sector during Mid-2017 to Autumn 2018
Wesam Mady*, Nahed Yehia, Mohammed Hassan Elhussieny, Azhar Gaber Shalaby, Moataz Mohamed El Sayed, Neveen Rabie Bakry, Asmaa Shaaban, Abdel Satar Arafa, Afaf Abdel Baset Mahmoud and Wafaa Mohammed Hassan
Reference Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Giza, Egypt.
[email protected]
Figure 1
Geographical distribution of HPAI H5N8 during May 2017-August 2018 in Egypt. FN: The Fig. show the distribution of the HPAI H5N8 positive cases mainly in upper Egypt.
Figure 2
Epidemic chart of HPAI H5N8 during May 2017-August 2018 in Egypt. FN: The Fig. show the number of examined and positive cases of HPAI H5N8 in different governorates.
Figure 3
Phylogenetic tree of the partial HA gene of HPAI H5N8 FN: Fig. show all HA gene of positive samples included in AI H5N8 clade 2.3.4.4 group B. The sequenced viruses were clustered together in group B Russian like reassortant H5N8 viruses of clade 2.3.4.4. black dots refer to the isolates of this study.
Figure 4
Nucleotide identities and divergence of Sequenced viruses compared to other selected strains. FN: Comparative alignment of partial HA gene showed that HA genes of the 10 viruses with reference strains in the genebank.