1. Department of Civil & Environmental Engineering, Stanford University, Stanford, California, USA
2. Verily Life Sciences, South San Francisco, California, USA
3. California Department of Public Health, Infectious Diseases Branch, Richmond, California, USA
4. County of Santa Clara Public Health Department, San Jose, California, USA
5. County of Santa Clara Department of Environmental Health, San Jose, California, USA
6. Department of Civil & Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA