1 University of California San Francisco School of Medicine, UCSF Health-UCSF Medical Center, San Francisco, California, United States.
2 Duke University School of Medicine, Durham, North Carolina, United States.
3 BJC Healthcare, Washington University School of Medicine, St. Louis, Missouri, United States.
4 Centers for Disease Control and Prevention, Atlanta, Georgia, United States.
5 Johns Hopkins University, Baltimore, Maryland, United States.
6 Norton Healthcare, University of Louisville School of Medicine, Louisville, Kentucky, United States.
7 Infection Control Programme, Geneva University Hospitals and Faculty of Medicine, World Health Organization Collaborating Center, Geneva, Switzerland.
8 IAME-U1137, Université Paris-Cité, INSERM, Paris, France.
9 Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire, United States.
10 Weill Cornell Medicine, New York, New York, United States.
11 Washington University School of Medicine, St. Louis, Missouri, United States.
12 College of Public Health, The University of Arizona, Tucson, Arizona, United States.
13 Penn Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, United States.
14 Edward Hines Jr. Veterans' Affairs Hospital, Hines, Illinois, United States.
15 Rush University Medical Center, Chicago, Illinois, United States.
16 Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, United States.
17 Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts, United States.
18 Northwestern University Feinberg School of Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, United States.
19 The University of Chicago Medical Center, MacLean Center for Clinical Medical Ethics, Chicago, Illinois, United States.
20 Columbia School of Nursing, New York, New York, United States.
21 Trinity Health Michigan, Ann Arbor, Michigan, United States.
22 Bern University Hospital, University of Bern, Bern, Switzerland.
23 University of Michigan Medical School, Ann Arbor, Michigan, United States.
24 Veterans' Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, United States.
25 Warren Alpert Medical School of Brown University, Providence, Rhode Island, United States.
26 Lifespan Hospital System, Providence, Rhode Island, United States.
27 Intermountain Healthcare, Salt Lake City, Utah, United States.
28 University of Texas Southwestern Medical Center, Dallas, Texas, United States.
29 Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada.
30 Texas A&M College of Medicine, Houston, Texas, United States.
31 Harvard Pilgrim Healthcare, Boston, Massachusetts, United States.
32 Alameda County Public Health Department, San Leandro, California, United States.
33 Cook County Health, Chicago, Illinois, United States.
34 Johns Hopkins University School of Medicine, The Johns Hopkins Hospital, Baltimore, Maryland, United States.