1. California National Primate Research Center, University of California, Davis, Davis, California; Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, California;, Email:
klchriste@ucdavis.edu
2. California National Primate Research Center, University of California, Davis, Davis, California
3. Pathogen Assay Laboratory, California National Primate Research Center, University of California, Davis, Davis, California