About the Authors

Nguyen Thi Hanh Tien

Affiliation Oxford University Clinical Research Unit, Hospital for Tropical Diseases, District 5, Ho Chi Minh City, Vietnam

Phung Khanh Lam

Affiliation Oxford University Clinical Research Unit, Hospital for Tropical Diseases, District 5, Ho Chi Minh City, Vietnam

Huynh Thi Le Duyen

Affiliation Oxford University Clinical Research Unit, Hospital for Tropical Diseases, District 5, Ho Chi Minh City, Vietnam

Tran Van Ngoc

Affiliation Hospital for Tropical Diseases, District 5, Ho Chi Minh City, Vietnam

Phan Thi Thanh Ha

Affiliation District 8 Hospital, District 8, Ho Chi Minh City, Vietnam

Nguyen Tan Thanh Kieu

Affiliation Oxford University Clinical Research Unit, Hospital for Tropical Diseases, District 5, Ho Chi Minh City, Vietnam

Cameron Simmons

Affiliations Oxford University Clinical Research Unit, Hospital for Tropical Diseases, District 5, Ho Chi Minh City, Vietnam, Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

Marcel Wolbers

Affiliations Oxford University Clinical Research Unit, Hospital for Tropical Diseases, District 5, Ho Chi Minh City, Vietnam, Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

Bridget Wills

bwills@oucru.org

Affiliations Oxford University Clinical Research Unit, Hospital for Tropical Diseases, District 5, Ho Chi Minh City, Vietnam, Centre for Tropical Medicine, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Supervised recruitment and care of participants: TVN PTTH. Data collection and management: TVN PTTH NTTK. Conceived and designed the experiments: BAW CPS. Performed the experiments: NTHT HTLD. Analyzed the data: NTHT PKL MW BAW. Contributed reagents/materials/analysis tools: NTTK. Wrote the paper: NTHT PKL MW BAW.