Affiliations

• ¹ Department of Civil and Environmental Engineering, Tufts University, Medford, MA, USA.
• ² Division of Epidemiology and Biostatistics, School of Public Health, University of California, Berkeley, CA, USA.
• ³ Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe; Blizard Institute, Queen Mary University of London, London, UK.
• ⁴ Center of International Policy Research and Evaluation, Mathematica Policy Research, Washington, DC, USA.
• ⁵ Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
• ⁶ Eastern and Southern Africa Centre of International Parasite Control, Kenya Medical Research Institute, Nairobi, Kenya.
• ⁷ International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh.
• ⁸ Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe.
• ⁹ Department of Nutrition, University of California, Davis, CA, USA.
• ¹⁰ Department of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA, USA.
• ¹¹ Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe; Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA. Electronic address: jhumphrey@zvitambo.co.zw.