1. School of Animal and Comparative Biomedical Sciences, The University of Arizona, Tucson, AZ, USA
2. Department of Pediatrics, The University of Arizona College of Medicine, Tucson, AZ, USA
3. Infectious Diseases, Mayo Clinic, Phoenix, AZ, USA
4. Department of Immunobiology, The University of Arizona College of Medicine, Tucson, AZ, USA
5. BIO5 Institute for Collaborative Research, The University of Arizona, Tucson, AZ, USA
6. Research Service, Southern Arizona VA Healthcare System, Tucson, AZ, USA