Home Acta Virologica 2019 Acta Virologica Vol.63, No.1, p.121-125, 2019

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Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

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Acta Virologica Vol.63, No.1, p.121-125, 2019

Title: Isolation of H8N4 avian influenza virus from wild birds in Shanghai, China
Author: W. TANG, X. LI, CH. HU, C. ZHU, Z. LI, D. WU, T. WANG, G. HE

Abstract: The H8 subtype viruses are rarely isolated from wild ducks. Shanghai is one of the important wintering or stopover sites on the East Asia-Australia Migration Flyway. An influenza virus, subtype H8N4, was firstly isolated from a common teal (Anas crecca) in Shanghai during 2017–2018 in this study. To clarify the genetic characteristics of the H8N4 virus, the whole genome sequences were analyzed. Phylogenetic analysis of the hemagglutinin and neuraminidase genes showed that they shared highest nucleotide identity (99.19%–99.64%) with the Japan duck-origin H8N4 virus collected in 2016 (A/duck/Aichi/231003/2016) and belonged to the Eurasian-like avian lineage. Six other genes of the H8N4 isolated virus were all highly similar to the corresponding genes of a wide range of AIV subtypes including H9N2, H5N7, H3N8, H1N2, H4N6 and H1N1. The results indicated that the H8N4 virus was a multiple reassortant virus. The study emphasized that the continuous surveillance of influenza virus in wild birds should be strengthened.

Keywords: avian influenza virus; H8N4; phylogenetic analysis; Shanghai
Published online: 13-Mar-2019
Year: 2019, Volume: 63, Issue: 1 Page From: 121, Page To: 125

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