| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a live attenuated Porcine Reproductive Respiratory Syndrome (PRRS) virus strain in a European serotype, having desired characteristics of different attenuation characteristics compared to present attenuated PRRS virus strains, and to provide a method for the production of such the attenuated PRRS virus strain. <P>SOLUTION: The European strain of the Porcine Reproductive Respiratory Syndrome (PRRS) virus has specific characteristics of noninfectious to a macrophage. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
