Characterization of H5N2 Influenza A Viruses Isolated from Chickens in Japan
- 1 March 2007
- journal article
- Published by American Association of Avian Pathologists (AAAP) in Avian Diseases
- Vol. 51 (s1), 474-475
- https://doi.org/10.1637/7573-033106r1.1
Abstract
A low pathogenic avian influenza virus of the H5N2 subtype was isolated for the first time from layer chickens in Japan in 2005. Surveillance in trading restriction zones and epidemiologically related farms revealed 41 seropositive farms, and 16 H5N2 viruses were isolated and characterized from nine of these farms. That these viruses were genetically and antigenically similar to each other suggested that these isolates were derived from a common origin. Complete genomic characterization of all eight gene segments showed that these H5N2 isolates in Japan had high homology to the H5N2 strains prevalent in Central America since 1994. The virus was reisolated from tracheal and cloacal swabs of experimentally inoculated chickens and efficiently transmitted to sentinel chickens in adjacent cages.Keywords
This publication has 2 references indexed in Scilit:
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- Characterization of H5N1 influenza A viruses isolated during the 2003–2004 influenza outbreaks in JapanVirology, 2005