About the Authors

David M. Tobin

Affiliation Department of Molecular Genetics and Microbiology, Center for Microbial Pathogenesis and Center for AIDS Research, Duke University, Durham, North Carolina, United States of America

Robin C. May

Affiliation Molecular Pathology and School of Biosciences, University of Birmingham, Birmingham, United Kingdom

Robert T. Wheeler

robert.wheeler@umit.maine.edu

Affiliation Department of Molecular and Biomedical Sciences and Graduate School of Biomedical Sciences, University of Maine, Orono, Maine, United States of America

Competing Interests

RTW and DMT have declared that no competing interests exist. RCM is an Associate Editor of PLoS Pathogens.