About the Authors

H. Irene Hall, Lorena Espinoza
Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Nanette Benbow
STI/HIV Division, Chicago Department of Public Health, Chicago, Illinois, United States of America

Yunyin W. Hu
HIV Epidemiology Program, Los Angeles County Department of Public Health, Los Angeles, California, United States of America

Corresponding Author

ixh1@cdc.gov

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HIH NB. Analyzed the data: HIH LE. Contributed reagents/materials/analysis tools: LE YWH. Wrote the paper: HIH NB. Interpretation of data: LE YWH.