Phylogenic analysis of reassorted avian influenza viruses isolated from Korean domestic ducks from 2005 to 2007.
Ducks have been regarded as animals that can perpetuate most avian influenza viruses since they generally do not show the clear clinical signs such as death and reduced body weight when they are infected. Here, we characterized two H3N2 and one H3N6 avian influenza viruses isolated from ducks on the local farms in Korea from 2005 to 2007. Genetic analysis of these viruses showed that most segments of isolates except NP genes belonged to Eurasian lineage. NP genes of two H3N2 isolates, A/Duck/Korea/S71/07, and A/Duck/Korea/S72/07 belonged to North American lineage. Our results suggest that the genetic reassortment among avian influenza viruses can occur in domestic ducks.
Kang
Sook Jung
SJ
Laboratory of Influenza Research, Institute of Veterinary Medicine, College of Veterinary Medicine, Chungnam National University, 220 Gung Dong, Yuseong-Gu, Daejeon, 305-764, South Korea.
Kim
Heui Man
HM
Kim
Yun Hee
YH
Hwang
Seon Do
SD
Shin
Jin Soo
JS
Ku
Keun Bon
KB
Kim
Hyun Soo
HS
Seo
Sang Heui
SH
D000818:Animals; D004372:Ducks; D053122:Influenza A Virus, H3N2 Subtype / Q000235:genetics* / Q000302:isolation & purification*; D005585:Influenza in Birds / Q000821:virology*; D007723:Korea; D008969:Molecular Sequence Data; D010802:Phylogeny; D011201:Poultry Diseases / Q000821:virology*; D012367:RNA, Viral / Q000235:genetics; D016865:Reassortant Viruses / Q000235:genetics* / Q000302:isolation & purification; D017422:Sequence Analysis, DNA; D017385:Sequence Homology
D012367:RNA, Viral