TY - CPAPER AU - T Opriessnig, P G Halbur, K-J Yoon, R M Pogranichniy, R Evans, F J Pallares, P Thomas, X J Meng TI - PATHOGENICITY OF MLV VACCINE, VACCINE PARENT STRAIN, AND FIELD ISOLATES OF PRRSV 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 - 2002 DA - 2002/06/01 L1 - https://www.aasv.org/library/swineinfo/Content/IPVS/2002/ORAL/287.PDF SE - Oral Presentations ER -