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Porcine Reproductive And Respiratory Syndrome
Studies from China Agricultural University reveal new findings on porcine reproductive and respiratory syndrome
June 23rd, 2009
According to recent research from Beijing, People's Republic of China, "During the past 2 years, an atypical clinical outbreak, caused by a highly pathogenic porcine reproductive and respiratory syndrome virus (PRRSV) with a unique 30-amino-acid deletion in its Nsp2-coding region, was pandemic in China. In this study, we generated four full-length infectious cDNA clones: a clone of the highly virulent PRRSV strain JXwn06 (pWSK-JXwn), a clone of the low-virulence PRRSV strain HB-1/3.9 (pWSKHB1/3.9), a chimeric clone in which the Nsp2 region containing the 30-amino-acid deletion was replaced by the corresponding region of the low-virulence PRRSV strain HB-1/3.9 (pWSK-JXwn-HB1nsp2), and a...
Source: TB & Outbreaks Week (2009-06-23)
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