About the Authors

C. D. Eckstrand

cdeckstrand@ucdavis.edu

Affiliation Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, California, United States of America

C. Hillman

Affiliation Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, California, United States of America

A. L. Smith

Affiliation Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California, Davis, California, United States of America

E. E. Sparger

Affiliation Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, California, United States of America

B. G. Murphy

Affiliation Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CDE BGM EES. Performed the experiments: CDE CH ALS. Analyzed the data: CDE BGM CH. Contributed reagents/materials/analysis tools: CDE BGM EES. Wrote the paper: CDE BGM EES.