About the Authors

Kelly A. Curtis

czv2@cdc.gov

Affiliation Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Debra L. Hanson

Affiliation Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

M. Susan Kennedy

Affiliation Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

S. Michele Owen

Affiliation Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KAC MSK SMO. Performed the experiments: MSK. Analyzed the data: KAC DLH. Contributed reagents/materials/analysis tools: KAC DLH MSK SMO. Wrote the paper: KAC DLH.