About the Authors

Jeffrey A. Melvin

Affiliation Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

Jennifer M. Bomberger

jbomb@pitt.edu

Affiliation Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

Competing Interests

The authors have declared that no competing interests exist.