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1 March 2012 Molecular Epidemiologic Investigation of Lentogenic Newcastle Disease Virus from Domestic Birds at Live Bird Markets in Korea
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Abstract

A Newcastle disease surveillance program was conducted at live bird markets in Korea to expand our epidemiologic understanding of the disease in Korea. During the surveillance program, 10 lentogenic Newcastle disease viruses (NDVs) were isolated and identified from apparently healthy chickens and ducks at live bird markets. The lentogenic viruses had sequence motifs of either 112GKQGRL117 (n  =  8) or 112GRQGRL117 (n  =  2) at the F0 cleavage site. Sequencing and phylogenetic analyses of NDV isolates based on the hypervariable region of the F protein revealed two different genotypes: genotypes I (n  =  8) and II (n  =  2). Genotype I viruses were most closely related to the NDV V4 strain (n  =  7) or the NDV Ulster 2C strain (n  =  1). In contrast, genotype II viruses clustered with the NDV vaccine strains (LaSota and VG/GA) that are commonly used as live vaccines in Korea. The epidemiologic importance of NDV at live bird markets in Korea is discussed.

American Association of Avian Pathologists
Kang-Seuk Choi, Eun-Kyoung Lee, Woo-Jin Jeon, Jun-Hun Kwon, Jin-Hwa Lee, and Haan-Woo Sung "Molecular Epidemiologic Investigation of Lentogenic Newcastle Disease Virus from Domestic Birds at Live Bird Markets in Korea," Avian Diseases 56(1), 218-223, (1 March 2012). https://doi.org/10.1637/9699-030311-ResNote.1
Received: 7 March 2011; Accepted: 1 August 2011; Published: 1 March 2012
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