About the Authors
Department of Microbiology, Immunology and Pathology, Rocky Mountain Regional Center of Excellence for Biodefense and Emerging Infectious Diseases Research, Colorado State University, Fort Collins, Colorado, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: BHK AG KLP HPS. Performed the experiments: BHK AG KLP. Analyzed the data: BHK AG KLP SWD HPS. Contributed reagents/materials/analysis tools: BHK AG KLP. Wrote the paper: BHK HPS.