Hogg, AlexSwitzer, William P.Farrington, Daniel O.2019-08-062019-08-061981https://hdl.handle.net/11299/205323This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enpork industryatrophic rhinitis swinebordetella bacterium pigsinflammation of pigs noseOther