TY - CPAPER AU - In J. Yoon, DVM, MS; HanSoo Joo, DVM, PhD; William T. Christianson, DVM, PhD; Robert B. Morrison, DVM, PhD; and Gary D. Dial, DVM, PhD TI - Persistent and contact infection in nursery pigs experimentally infected with porcine reproductive and respiratory syndrome (PRRS) virus T2 - Journal of Swine Health and Production DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 1993 DA - 1993/01/01 L1 - https://www.aasv.org/library/swineinfo/Content/SHAP/1993/v1n4p5.pdf ER -