Gonzalo Bearman MD, MPHRichard P. Wenzel Professor of Medicine-Chair, Division of Infectious Diseases/ Hospital EpidemiologistInfectious Diseases/ EpidemiologyVirginia Commonwealth University Health System1300 East Marshall StreetPO BOX 980019Richmond, Virginia 23298, United States of AmericaT: (804) 828-2121F: (804) 828-2125Email: gonzalo.bearman@vcuhealth.org L. Silvia Munoz-Price, MD, PhDEnterprise EpidemiologistAssociate Professor of MedicineDepartment of Medicine-Division of Infectious DiseasesFroedtert and the Medical College of WisconsinFroedtert Hospital9200 W Wisconsin AveMilwaukee, Wisconsin 53226, United States of AmericaT: (414) 955-8020Email: smunozprice@mcw.edu Daniel J Morgan, MD, MSAssociate Professor, Chief Hospital EpidemiologistEpidemiology, Public Health and MedicineUniversity of Maryland School of Medicine and Baltimore VA Medical Center10 S. Pine StreetMSTF 334Baltimore, Maryland 21201, United States of AmericaT: (410) 706-1734Email: dmorgan@epi.umaryland.edu