About the Authors

Annabelle Gourlay

annabelle.gourlay@lshtm.ac.uk

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom

Alison Wringe

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom

Isolde Birdthistle

Affiliation Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom

Gerry Mshana

Affiliation National Institute for Medical Research, Mwanza, Tanzania

Denna Michael

Affiliation National Institute for Medical Research, Mwanza, Tanzania

Mark Urassa

Affiliation National Institute for Medical Research, Mwanza, Tanzania

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AG AW IB GM DM MU. Performed the experiments: AG. Analyzed the data: AG AW. Contributed to the writing of the manuscript: AG AW IB GM DM MU. Assisted in recruitment of health officials and coordinated preparatory discussions with health facilities: DM. Coordinated fieldwork logistics in his role as overall manager of the Kisesa cohort study: MU.