1. Departments of Microbiology and Medicine, New York University School of Medicine, New York, New York, USA
2. The Ecosystems Center, Marine Biological Laboratory, Woods Hole, Massachusetts, USA
3. Stanford Center for Biomedical Ethics, Stanford University, Palo Alto, California, USA
4. Department of Biology and Howard Hughes Medical Institute, University of North Carolina, Chapel Hill, North Carolina, USA
5. Department of Bacteriology, Great Lakes Bioenergy Research Center and Wisconsin Energy Institute, University of Wisconsin—Madison, Madison, Wisconsin, USA
6. Biology and the Built Environment Center, University of Oregon, Eugene, Oregon, USA
7. Department of Biology, Institute of Ecology and Evolution, University of Oregon, Eugene, Oregon, USA
8. Departments of Pediatrics and Computer Science & Engineering, and Center for Microbiome Innovation, University of California San Diego, La Jolla, California, USA
9. Biosciences, Lawrence Berkeley National Laboratory, Berkeley, California, USA
10. Division of Biostatistics, Gladstone Institutes and Institute for Human Genetics, Institute for Computational Health Science, University of California, San Francisco, California, USA
11. Earth and Environmental Sciences, Lawrence Berkeley National Lab, Berkeley, California, USA
12. Department of Environmental Science, Policy and Management, University of California, Berkeley, California, USA