Persistent detection of avian influenza A/H7N9 virus among poultry in Huzhou City, China, in the summer of 2013

Jiankang Han; Jia Liu; Lili Wang; Peng Zhang; Guangtao Liu; Ke Lan; Chiyu Zhang

doi:10.1016/j.ijid.2014.01.020

Persistent detection of avian influenza A/H7N9 virus among poultry in Huzhou City, China, in the summer of 2013

Int J Infect Dis. 2014 Sep:26:72-5. doi: 10.1016/j.ijid.2014.01.020. Epub 2014 Jul 10.

Authors

Jiankang Han¹, Jia Liu², Lili Wang², Peng Zhang¹, Guangtao Liu¹, Ke Lan², Chiyu Zhang³

Affiliations

¹ Huzhou Center for Disease Control and Prevention, Huzhou, Zhejiang, China.
² Pathogen Diagnostic Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 411, Hefei Road, Shanghai 200025, China.
³ Pathogen Diagnostic Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, 411, Hefei Road, Shanghai 200025, China. Electronic address: zhangcy1999@ips.ac.cn.

PMID: 25018091
DOI: 10.1016/j.ijid.2014.01.020

Abstract

In eastern China, live poultry markets were successively re-opened in the summer of 2013 following their closure in April 2013. We detected influenza A/H7N9 RNA with positive rates from 4% to 22.2% among poultry samples in targeted markets in Huzhou City, China, from August 6 to September 24, 2013. Phylogenetic analyses of hemagglutinin and neuraminidase genes confirmed that the strain prevalent among poultry in Huzhou City in the summer of 2013 belonged to the same genotype as those capable of infecting humans. These results raise concern for a further outbreak of H7N9 in the cooler season.

Keywords: Hemagglutinin; Influenza A/H7N9 virus; Live poultry markets; Neuraminidase; Poultry; Summer.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
China
Influenza A Virus, H7N9 Subtype / classification
Influenza A Virus, H7N9 Subtype / genetics
Influenza A Virus, H7N9 Subtype / isolation & purification*
Phylogeny
Poultry / virology*
Seasons