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A novel genotype of beak and feather disease virus in budgerigars (<Emphasis Type="Italic">Melopsittacus undulatus</Emphasis>) |
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| Authors: | Hirohito Ogawa Hiroshi Katoh Naoko Sanada Yasuyuki Sanada Kenji Ohya Tsuyoshi Yamaguchi Hideto Fukushi |
| Institution: | (1) Guangxi Center for Animal Disease Control and Prevention, 51 You Ai Road, 530001 Nanning, Guangxi, China;(2) Department of Veterinary Microbiology, University of Miyazaki, 1-1 Gakuen Kibanadai Nishi, Miyazaki 889-2192, Japan;(3) Guangxi Veterinary Research Institute, 51 You Ai Road, 530001 Nanning, Guangxi, China;(4) Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, CT 06269-3089, USA; |
| Abstract: | House sparrow (Passer domesticus) is one of the most widely distributed wild birds in China. Five Newcastle disease virus (NDV) strains were isolated from house sparrows living around the poultry farms in southern China. These isolates were characterized by pathogenic assays and phylogenetic analysis. The results showed that all NDV isolates except one were velogenic and virulent for chickens. These four virulent strains for chickens possess the amino acid sequence 112R/K-R-Q-K/R-R-F117 in the F0 cleavage site which is typical of velogenic NDV. Phylogenetic analysis indicated that these isolates belong to genotype VII and were closely related to the strains which were isolated from NDV outbreaks in chickens since 2000. One isolate of NDV from house sparrow belong to genotype II and was proved to be vaccine strain (Chicken/U.S./LaSota/46). The result of this study proved that house sparrow can carry the virulent NDV strains and the same genotype of viruses that are circulating in poultry are existing in house sparrows living around poultry farm in southern China. |
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