About the Authors

John E. Pearson

Affiliation Theoretical Biology & Biophysics, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America

Paul Krapivsky

Affiliation Department of Physics, Boston University, Boston, Massachusetts, United States of America

Alan S. Perelson

asp@lanl.gov

Affiliation Theoretical Biology & Biophysics, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the paper: JEP ASP. Posed specific problem and did simulations: JEP. Calculated extinction probability: PK. Suggested topic and designed research: ASP.