1. California Animal Health and Food Safety (CAHFS) Laboratory, School of Veterinary Medicine, University of California, Davis, CA, USA
2. National Institute of Agricultural Technology (INTA), Mercedes, Corrientes, Argentina
3. University of California, School of Veterinary Medicine, Davis, CA, USA
4. North Dakota State University, Veterinary Diagnostic Laboratory (NDSU-VDL), Fargo, ND, USA