| Summary |
There were three outbreaks in Taiwan in 1969 , 1984 and 1995. According to phylogenetic analysis which these isolates are genotype Ⅰ,Ⅱ,Ⅲ,Ⅵ,Ⅶ and Ⅷ. The first outbreak in 1969 , these isolates were genotype Ⅲ and Ⅵ , and there is a new discover that genotype Ⅵ viruses to arise from 1969 to 1987. The second outbreak in 1984 , It was to occur mainly genotype Ⅶ viruses. The third outbreak in 1995, these isolates were genotype Ⅲ and Ⅶ viruses , but there is genotype Ⅷ isolated . After the 1996，there are widespread genotype Ⅶ virus ,and the isolates from poultry is to highly focus on genotype Ⅶ from 1998 to 2002. In 2003, we isolated a newcastle disease virus from pigeon, it’s genotypeⅥ. In other isolated, a genotype Ⅶ virus isolated from bird which come from Indonesia, the similarity is 87.7 to 92.0, which comparison of based on nucleotide sequences among this isolated and Taiwan isolated. There are a genomic plan, we have cloning and sequencing the genotype Ⅶ NDV genome.
|