TY - CPAPER AU - Voglmayr, T.; W. Sipos, B. Exel, K. Truschner, M. Schuh, M. Trchka, F. Schmoll TI - ESTABLISHMENT OF A PRRSV NEGATIVE POPULATION FROM A POSITIVE SOURCE IN A TWO-SITE SYSTEM WITHOUT INTERRUPTION OF PRODUCTION T2 - International Pig Veterinary Society Congress DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2004 DA - 2004/06/01 L1 - https://www.aasv.org/library/swineinfo/Content/IPVS/2004/830.pdf SE - 1.1. PRRS, Circo-Virus and Influenza ER -