Exchange of Newcastle disease viruses in Korea: The relatedness of isolates between wild birds, live bird markets, poultry farms and neighboring countries

• Published in: Infection, genetics and evolution Vol. 12; no. 2; pp. 478 - 482
• Main Authors: Kim, Byoung-Yoon, Lee, Dong-Hun, Kim, Myeong-Seob, Jang, Jun-Hyuk, Lee, Yu-Na, Park, Jae-Keun, Yuk, Seong-Su, Lee, Joong-Bok, Park, Seung-Yong, Choi, In-Soo, Song, Chang-Seon
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01-03-2012; Elsevier
• Subjects: Animals; Biological and medical sciences; Birds - virology; Chick Embryo; Domestic poultry; ducks; epidemiology; Epidemiology. Vaccinations; Evolution; farms; General aspects; Genotype; hosts; Infectious diseases; Live bird market; markets; Medical sciences; monitoring; Newcastle disease; Newcastle Disease - epidemiology; Newcastle Disease - virology; Newcastle disease virus; Newcastle disease virus - classification; Newcastle disease virus - genetics; Newcastle disease virus - isolation & purification; Phylogeny; Poultry - virology; Republic of Korea - epidemiology; Transmission; Viral Fusion Proteins - genetics; viruses; Wild bird; wild birds; Korean Peninsula; Asia; Korea; Republic of Korea; Evolution; Live bird market; Newcastle disease virus; Wild bird; Domestic poultry; Transmission; Farming animal; Poultry; Paramyxoviridae; Infection; Virus; Exchange; Paramyxovirinae; Mononegavirales; Vertebrata; Newcastle disease; Meat animals; Viral disease; Rubulavirus; Molecular epidemiology; Aves
• ISSN: 1567-1348; 1567-7257
• DOI: 10.1016/j.meegid.2011.12.004

► Newcastle disease viruses were isolated from live bird markets and wild bird populations in Korea. ► All 14 isolates belonged to genotype I virus within class II. ► All isolates in this study were closely related to isolates from domestic duck farms in Korea and Chinese LBM isolates. ► NDV exchange occurred between wild birds, poultry farms, LBMs and neighboring countries.
Newcastle disease virus (NDV) has a worldwide distribution and is often carried by wild ducks, which may represent one of the natural reservoirs. However, the epidemiological relatedness of NDV between wild ducks and domestic poultry is unclear. A total of 14 isolates were obtained from 8439 samples from live bird markets (LBMs) and wild bird populations in Korea during from 2007 to 2010. These isolates were characterized genetically and phylogenetic analysis was conducted to investigate the relatedness between isolates from wild birds, LBM and poultry farms. In phylogenetic analysis, all 14 isolates belonged to genotype I virus within class II. Of these, nine isolates from wild birds were most closely related to the Aomori-like cluster. The five LBM isolates were most closely related to the V4-like cluster. All isolates in this study were closely related to isolates from domestic duck farms in Korea and Chinese LBM isolates. The results indicate that NDV exchange occurs between wild birds, poultry farms, LBMs and neighboring countries. Enhanced NDV surveillance is required to monitor the introduction of variant NDV in consequence of evolution in LBMs and to investigate NDV epidemiology in various species of putative hosts.