6 research outputs found
Additional file 2: Table S2. of Surveillance of avian influenza viruses in South Korea between 2012 and 2014
HA sequence information of H5 viruses for phylogenetic analysis. (XLSX 18 kb
Additional file 3: Figure S1. of Surveillance of avian influenza viruses in South Korea between 2012 and 2014
Monthly prevalence of domestic poultry about H5N8 subtype in 2014 and H3 subtype in 2013. (DOCX 16 kb
Additional file 2: Table S2. of Surveillance of avian influenza viruses in South Korea between 2012 and 2014
HA sequence information of H5 viruses for phylogenetic analysis. (XLSX 18 kb
Additional file 1: Table S1. of Surveillance of avian influenza viruses in South Korea between 2012 and 2014
National active surveillace plan for avian influenza in 2014 in South Korea. (XLSX 14 kb
Genetic Characterization of Novel H7Nx Low Pathogenic Avian Influenza Viruses from Wild Birds in South Korea during the Winter of 2020–2021
Zoonotic infection with avian influenza viruses (AIVs) of subtype H7, such as H7N9 and H7N4, has raised concerns worldwide. During the winter of 2020–2021, five novel H7 low pathogenic AIVs (LPAIVs) containing different neuraminidase (NA) subtypes, including two H7N3, an H7N8, and two H7N9, were detected in wild bird feces in South Korea. Complete genome sequencing and phylogenetic analysis showed that the novel H7Nx AIVs were reassortants containing two gene segments (hemagglutinin (HA) and matrix) that were related to the zoonotic Jiangsu–Cambodian H7 viruses causing zoonotic infection and six gene segments originating from LPAIVs circulating in migratory birds in Eurasia. A genomic constellation analysis demonstrated that all H7 isolates contained a mix of gene segments from different viruses, indicating that multiple reassortment occurred. The well-known mammalian adaptive substitution (E627K and D701N) in PB2 was not detected in any of these isolates. The detection of multiple reassortant H7Nx AIVs in wild birds highlights the need for intensive surveillance in both wild birds and poultry in Eurasia