Author: Jeffrey J. Zimmerman

Antonio Morilla, DVM, Ph D, Dipl AE, Head of Swine Infectious Disease Branch, Centro Nacional de Microbiologia, Instituto Nacional de Investigaciones Forestales, Agricolas y Pecuarias (INIFAP), Mexico. Kyoung-Jin Yoon, DVM, Ph D. Dipl ACVM, Head of Virology and Molecular Microbiology Section, Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Iowa State University. Jeffrey J. Zimmerman, DVM, Ph D, Dipl ACVPM, Head of Epidemiology and Applied Research Section, Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University.