TY - CPAPER AU - T.J. Kaiser, K.P. Horlen, M. Keith, R. Jolie, L.P. Taylor, J.G. Calvert, R.R.R. Rowland TI - Safety and attenuation of PRRSV strains genetically modified in the NSP2 region in young pigs T2 - Allen D. Leman Swine Conference DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2007 DA - 2007/09/01 L1 - https://www.aasv.org/library/swineinfo/Content/LEMAN/2007/Abstracts/17 keith abstract.pdf SE - Recent Research Reports ER -