Genetic characterization of H1 avian influenza viruses isolated from migratory birds and domestic ducks in Korea.
H1 avian influenza viruses (AIVs) isolated from migratory birds and domestic ducks from 2003 to 2007 were analyzed to determine their genetic relationship. Phylogenic analysis with nucleotide sequences of all eight gene segments showed that 13 H1 AIVs from migratory birds and domestic ducks belonged to Eurasian avian lineages and were closely related to each other. Compared with H1 influenza viruses of swine or human origin in Korea, there was no evidence of reassortment among the human, swine, and avian hosts. Our results show that H1 AIVs isolated in Korea from 2003 to 2007 were genetically stable. However, continued surveillance is needed considering the role of migratory birds and domestic duck as a source of AIVs.
Jeong
Ok-Mi
OM
Avian Disease Division, National Veterinary Research and Quarantine Service, 175 Anyang-ro, Manan-gu, Anyang city, Gyeonggi-do, Republic of Korea.
Kim
Yong-Joo
YJ
Choi
Jun-Gu
JG
Kang
Hyun-Mi
HM
Kim
Min-Chul
MC
Kwon
Jun-Hun
JH
Lee
Youn-Jeong
YJ
D000818:Animals; D001717:Birds / Q000821:virology*; D004372:Ducks / Q000821:virology*; D005243:Feces / Q000821:virology; D019267:Hemagglutinin Glycoproteins, Influenza Virus / Q000235:genetics*; D009980:Influenza A virus / Q000235:genetics* / Q000302:isolation & purification; D005585:Influenza in Birds / Q000821:virology; D010802:Phylogeny; D012367:RNA, Viral / Q000235:genetics; D056910:Republic of Korea; D017423:Sequence Analysis, RNA
D019267:Hemagglutinin Glycoproteins, Influenza Virus; D012367:RNA, Viral