About the Authors

Du-Ping Zheng

Affiliation Division of Global HIV/AIDS, Center for Global Health, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, United States of America

Margarida Rodrigues

Affiliation CDC-GAP Angola, Luanda, Angola

Ebi Bile

Affiliation CDC-GAP Botswana, Gaborone, Botswana

Duc B. Nguyen

Affiliation Department of Health and Human Services/US CDC, Hanoi, Vietnam

Karidia Diallo

Affiliation Division of Global HIV/AIDS, Center for Global Health, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, United States of America

Joshua R. DeVos

Affiliation Division of Global HIV/AIDS, Center for Global Health, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, United States of America

John N. Nkengasong

Affiliation Division of Global HIV/AIDS, Center for Global Health, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, United States of America

Chunfu Yang

CYang1@cdc.gov

Affiliation Division of Global HIV/AIDS, Center for Global Health, Centers for Disease Control and Prevention (CDC), Atlanta, Georgia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DPZ CY. Performed the experiments: MR EB DBN KD JRD. Analyzed the data: DPZ. Contributed reagents/materials/analysis tools: MR EB DBN CY JNN. Wrote the manuscript: DPZ CY JNN.