1. Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, 1518 Clifton Road, Atlanta, Georgia 30322, United States
2. Verily Life Sciences, South San Francisco, California 94080, United States
3. Department of Epidemiology, University of Michigan, Ann Arbor, Michigan 48109, United States
4. Department of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
5. University Health Service, University of Michigan, Ann Arbor, Michigan 48109, United States
6. Division of Infectious Diseases, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan 48109, United States
7. Department of Orthopaedic Surgery, Stanford University School of Medicine, Stanford, California 94305, United States
8. Department of Civil & Environmental Engineering, Stanford University, Stanford, California 94305, United States