Ferrin, N.H.Torremorell, M.Gramer, M.Fang, Y.Murtaugh, M.P.Johnson, C.R.Nelson, E.A.2013-11-182013-11-182002-09-14https://hdl.handle.net/11299/160395en-USswinepigherd healthResolution of Unexpected IDEXX ELISA Positive Results for Antibodies Against Porcine Reproductive and Respiratory Syndrome Virus with IFA and A Blocking ELISAConference Paper