THE ENTIRE GENOMIC SEQUENCE OF PRRS VIRUS CH-la

摘要

The outbreak of porcine reproductive and respiratory syndrome (PRRS) was firstly reported in the U.S.A. in 1987(1). A similar syndrome was recognized in Germany, the Netherlands, England, Belgium, and Spain soon after that (2). Now, PRRS exists in many countries all over the world. Clinical signs indicative of PRRSV infection were recognized in 1995 in a swine herd in Beijing. Four PRRS virus strains were isolated, of which is designated CH-la (3). The specific anti-PRRSV antibodies were detected inswine in many provinces in China since then. And PRRS is one of the most economically important diseases of swine in China now. It's significant to determine the entire genomic sequence of CH-la, the first PRRSV isolate in China for further study on itsbiological and molecular features.