Author Affiliations +
Vicky L. van Santen,1 Haroldo Toro,1 Frederic J. Hoerr1,2
1Department of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, AL, U.S.A. 36849-5519
2Thompson-Bishop-Sparks State Diagnostic Laboratory, State of Alabama, Department of Agricultural Industries, Auburn, AL, U.S.A. 36831-2209