Carolyn H Goldschmidt, DO, Northshore University Healthsystem, Evanston, IL, Jordan Glassman, DO, Touro University College of Osteopathic Medicine, Henderson, NV, Brandon Ly, DO, Touro University College of Osteopathic Medicine,, Henderson, NV, Tucker Harvey, MS, Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH and Le H Hua, MD, Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV

Enrique Alvarez, MD1, Derrick Robertson, MD2, Daniel Wynn, MD3, Yihuan Xu, PhD4, Lily Lee, PhD4 and Sibyl Wray, MD5, (1)University of Colorado Anschutz Medical Campus, Aurora, CO, (2)Neurology, University of South Florida Morsani College of Medicine, Tampa, FL, (3)Consultants in Neurology MS Center, Northbrook, IL, (4)TG Therapeutics, New York, NY, (5)Hope Neurology MS Center, Knoxville, TN

Bruce A.C. Cree, MD1, Krzysztof W. Selmaj, MD, PhD, DSc2, Lawrence Steinman, MD3, Giancarlo Comi, MD4, Amit Bar-Or, MD5, Douglas L. Arnold, MD6, Hans-Peter Hartung, MD, FRCP, FEAN, FAAN, FANA7, Xavier Montalban, MD, PhD8, Eva Havrdova, MD, PhD9, James K. Sheffield, MD MBA MSMD10, Chun-Yen Cheng, MS10, Jon V. Riolo, MD10, Diego Silva, MD10, Ludwig Kappos, MD11 and Jeffrey A. Cohen, MD12, (1)Weill Institute for Neurosciences, Department of Neurology, University of California San Francisco, San Francisco, CA, (2)Center for Neurology, Lodz, Poland, and Collegium Medicum, Department of Neurology, University of Warmia and Mazury, Olsztyn, Poland, (3)Department of Neurology and Neurological Sciences, Beckman Center for Molecular Medicine, Stanford University Medical Center, Stanford, CA, (4)Vita-Salute San Raffaele University and Casa di Cura del Policlinico, Milan, Italy, (5)Center for Neuroinflammation and Experimental Therapeutics, and Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, (6)NeuroRx Research and Montreal Neurological Institute, McGill University, Montreal, QC, Canada, (7)Department of Neurology, Palacky University Olomouc, Olomouc, Czech Republic, (8)Department of Neurology-Neuroimmunology, Centre d’Esclerosi Multiple de Catalunya (Cemcat), Hospital Universitario Vall d’Hebron, Barcelona, Spain, (9)Department of Neurology and Center for Clinical Neuroscience, First Medical Faculty, Charles University, Prague, Czech Republic, (10)Bristol Myers Squibb, Princeton, NJ, (11)Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), Departments of Head, Spine and Neuromedicine, Clinical Research, Biomedicine and Biomedical Engineering, University Hospital and University of Basel, Basel, Switzerland, (12)Mellen Center for MS Treatment and Research, Cleveland Clinic, Cleveland, OH

Xavier Montalban, MD, PhD, Department of Neurology-Neuroimmunology, Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Hospital Universitario Vall d’Hebron, Barcelona, Spain, Douglas L. Arnold, MD, Montreal Neurological Institute, Montreal, QC, Canada; NeuroRx Research, Montreal, QC, Canada, Martin S Weber, MD, Institute of Neuropathology and Department of Neurology, University Medical Center, University of Göttingen, Göttingen, Germany, Karolina Piasecka-Stryczynska, PhD, Department of Neurology and Cerebrovascular Diseases, Poznań University of Medical Sciences, Poznań, Poland, Davorka Tomic, PhD, Ares Trading SA, an affiliate of Merck KGaA, Darmstadt, Germany, Eysins, Switzerland, Anastasiia Kinkolykh, MD, Quartesian (a Veranex company), Princeton, NJ, Ying Li, MS, EMD Serono, Billerica, MA, Hans Guehring, MD, The healthcare business of Merck KGaA, Darmstadt, Germany, Enrique Alvarez, MD, PhD, MSCI, Department of Neurology, Rocky Mountain Multiple Sclerosis Center at the University of Colorado, Aurora, CO; Department of Neurology, University of Colorado, Aurora, CO and Jerry S Wolinsky, MD, Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX

Anthony Traboulsee, MD1, Ingo Kleiter, MD, DM2, Jacqueline Palace, DM3, Kazuo Fujihara, MD4, Albert Saiz, MD, PhD5, Ivana Vodopivec, MD, PhD6, Gaelle Klingelschmitt, MSc6, Carole Marcillat, PharmD6 and Jeffrey L Bennett, MD, PhD7, (1)University of British Columbia, Vancouver, BC, Canada, (2)Ruhr University Bochum, Bochum, Germany, (3)John Radcliffe Hospital, Oxford, United Kingdom, (4)Fukushima Medical University School of Medicine, Fukushima, Japan, (5)Service of Neurology, Hospital Clinic and Institut d’Investigacio Biomedica August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain, (6)F. Hoffmann-La Roche Ltd, Basel, Switzerland, (7)University of Colorado School of Medicine, Aurora, CO

Cody Gurski, BS1, Zivar Hajiyeva, MD, Ph.D.1, Kaylan Fenton, APNP2, Samantha O’Dell, BA2, Bonnie N Dittel, PhD1,3 and Ahmed Z Obeidat, MD, PhD2, (1)Versiti Blood Research Institute, Milwaukee, WI, (2)Neurology, Medical College of Wisconsin, Milwaukee, WI, (3)Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI

Tatum M Moog, B.S., Alexander D Smith, B.S., Katy W Burgess, PA-C, Morgan McCreary, PhD and Darin T Okuda, MD, Neurology, UT Southwestern Medical Center, Dallas, TX

Emma Chase, MS1,2, Michael A Lane, MD2,3, Priya Srikanth, MS4, Lindsey Wooliscroft, MD, MCR5,6, Elizabeth Silbermann, MD2,4, Vicky Chen, MD2,4, Kayla Martin, MD2,4, Christopher Hollen, MD2,4, Claire Adams, MS4, Carly Vong, MPH4, Anna Orban, BS4, Allison Fryman, MPH2, Jessica Rice, MD2,4, Angela Horgan, PhD7, Akram Khan, MD7 and Vijayshree Yadav, MD2,4, (1)Neurology, Oregon Health & Science University, Portand, OR, (2)VA Portland Health Care System, Portland, OR, (3)Neurology, Oregon Health & Science University, Porltand, OR, (4)Neurology, Oregon Health & Science University, Portland, OR, (5)Department of Neurology, Oregon Health & Science University, Portland, OR, (6)MS Center of Excellence, VA Portland Health Care System, Portland, OR, (7)Oregon Health & Science University, Portland, OR

Valerie J Block, PT, DPTSc, Physical Therapy and Rehabilitation Science, University of California San Francisco, San Francisco, CA; Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, Anne M Suskind, MD, FACS, MS, Urology, University of California San Francisco, San Francisco, CA and Riley Bove, MD, Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA

Farren B.S. Briggs, PhD, ScM1, Tucker Harvey, MS2, Kathryn C. Fitzgerald, ScD3, Ellen M Mowry, MD, MCR3, Jeffrey A. Cohen, MD4 and Daniel Ontaneda, MD PhD4, (1)Department of Population and Quantitative Health Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, (2)Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, (3)Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, (4)Mellen Center for MS Treatment and Research, Cleveland Clinic, Cleveland, OH

Jennifer Graves, MD PhD MAS, University of California San Diego, San Diego, CA, Tanja Kuhlmann, MD, University Hospital Münster, Münster, Germany, Marcello Moccia, MD, Federico II University of Naples, Naples, Italy, Timothy Coetzee, PhD, National MS Society, New York, NY, Jeffrey A. Cohen, MD, Mellen Center for MS Treatment and Research, Cleveland Clinic, Cleveland, OH, Jorge Correale, MD, FLENI Institute, Buenos Aires, Argentina, Ruth Ann Marrie, MD, PhD, FRCPC, University of Manitoba, Winnipeg, MB, Canada, V. Wee Yong, PhD, University of Calgary, Calgary, AB, Canada, Xavier Montalban, MD PhD, Centre d’Esclerosi Múltiple de Catalunya (Cemcat), Hospital Universitario Vall d’Hebron, Barcelona, Spain, Alan J Thompson, MD, University College London, London, United Kingdom, Daniel S. Reich, MD, PhD, National Institute of Neurological Disorders and Stroke, Bethesda, MD and the International Advisory Committee on Clinical Trials in MS

Nahid Iseyas, MD Candidate, Temerty Faculty of Medicine, The University of Toronto, Toronto, ON, Canada, Samantha Stephens, PhD, Department of Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, ON, Canada and Ann Yeh, M.D., Dept. of Paediatrics, Div. of Neurology, The Hospital for Sick Children, Toronto, ON, Canada

David KB Li, MD FRCPC1, Samuel Yim, MHA2, Laura Barlow, RTR, RMTR3, Monty Martin, MD FRCPC4, Carolyn Rudden, BSc MA5, June Halper, MSN, APN-C, MSCN, FAAN6, Lori Saslow, MS6 and Anthony Traboulsee, MD7, (1)Radiology and Medicine (Neurology), University of British Columbia, Vancouver, BC, Canada, (2)Vancouver Coastal Health, Vancouver, BC, Canada, (3)UBC MRI Research Centre, Vancouver, BC, Canada, (4)Radiology, University of British Columbia, Vancouver, BC, Canada, (5)British Columbia Ministry of Health, Victoria, BC, Canada, (6)Consortium of Multiple Sclerosis Centers, Hackensack, NJ, (7)University of British Columbia, Vancouver, BC, Canada

Blake E Dewey, PhD, Nicole Bou Rjeily, MD, Chen Hu, MS, Christy Hulett, BA, Gabriella Dagher, BS, Alexandra Zambriczki Lee, BS, Anna DuVal, BA, MPH, Peter A Calabresi, MD, Kathryn C. Fitzgerald, ScD and Ellen M. Mowry, MD, MCR, Neurology, Johns Hopkins University School of Medicine, Baltimore, MD

Robert Zivadinov, MD, PhD1, John DeLuca, PhD2, Jon V. Riolo, MD3, Chun-Yen Cheng, MS3, Sibyl Wray, MD4, Ann Bass, MD5, Edward Fox, MD, PhD, FAAN6, Emily Riser, MD7, Burhan Chaudhry, MD3, Jennifer Reardon, MSN, ANP-BC, CNRN, MSCN3, Diego Silva, MD3 and Robert T. Naismith, MD8, (1)Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, (2)Kessler Foundation, West Orange, New Jersey, and Departments of Physical Medicine and Rehabilitation, and Neurology, Rutgers – New Jersey Medical School, Newark, NJ, (3)Bristol Myers Squibb, Princeton, NJ, (4)Hope Neurology MS Center, Knoxville, TN, (5)Neurology Center of San Antonio, San Antonio, TX, (6)Central Texas Neurology Consultants, Round Rock, TX, (7)Alabama Neurology Associates, Birmingham, AL, (8)Department of Neurology, Washington University in St. Louis School of Medicine, St. Louis, MO

Ati Ghoreyshi, PhD1, Elisa Sheng, PhD1, Ferhan Qureshi, BS1, Tammy Hoyt, MS2 and John Foley, MD3, (1)Octave Bioscience, Menlo Park, CA, (2)Rocky Mountain MS Research Group, Salt Lake City, UT, (3)Rocky Mountain MS Clinic, Salt Lake City, UT

Lianrui Zuo, MSE1,2, Savannah P Hays, BS1, Blake E Dewey, PhD3, Samuel W Remedios, BS4,5, Yuan Xue, PhD1, Sandra D Cassard, ScD3, Carolyn Koch, MA3, Ann Fishman, MBA6, Aaron Carass, MS1, Jerry L Prince, PhD1, Ellen M. Mowry, MD, MCR3 and Scott D Newsome, DO, MSCS3, (1)Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD, (2)National Institute on Aging, National Institutes of Health, Baltimore, MD, (3)Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, (4)Radiology and Imaging Sciences, National Institutes of Health, Bethesda, MD, (5)Computer Science, Johns Hopkins University, Baltimore, MD, (6)Geriatric Psychiatry and Neuropsychiatry, Johns Hopkins University School of Medicine, Baltimore, MD

Christopher C Hemond, MD1, Mugdha Deshpande, MS1, Idanis Berrios-Morales, MD1, George M Slavich, PhD2 and Steven W Cole, PhD2, (1)Neurology, University of Massachusetts, Worcester, MA, (2)Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA

Amy Sullivan, Psy.D.1, Alexa Kane, PsyD1, Grace E Tworek, Psy.D.1 and Tucker Harvey, MS2, (1)The Mellen Center for Multiple Sclerosis Treatment and Research, Cleveland Clinic, Cleveland, OH, (2)Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH

Avery Largent, BA1, Odelin Charron, MSc, MSE1, Diana Andino, MD1, Amanda Montague, EdM2, Alexis Crispino, BA2, Joseph Wozny, MPH3, Trudy Millard Krause, DrPH, MS3, Ethan Meltzer, MD1, Ethan Huson, BSA Neuroscience1 and Leorah Freeman, MD, PhD1, (1)Neurology, Dell Medical School, The University of Texas at Austin, Austin, TX, (2)Multiple Sclerosis Association of America, Cherry Hill, NJ, (3)Center for Healthcare Data, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX

Peixuan Zheng, PhD1, Lara A. Pilutti, PhD2,3, Noah G. DuBose, MS1 and Robert W. Motl, PhD1, (1)Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL, (2)Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON, Canada, (3)Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada

Petra Silic, BS1, Brenda Jeng, PhD1, Catherine D Jones, MSPH2, Trinh Huynh, MPH2, Jennifer Duffecy, PhD3 and Robert W. Motl, PhD1, (1)Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL, (2)Physical Therapy, University of Alabama at Birmingham, Birmingham, AL, (3)Psychiatry, University of Illinois Chicago, Chicago, IL

Sarah C Stoney, MSW, LSW1, Chelsea C Black, Ph.D., ABPP-CN2, Isabella Sobejano, (BA expected completion May 2024)1, Elizabeth Kunzelman, BSN, RN1, Amy T Waldman, M.D., M.S.C.E.1, Sarah E Hopkins, MD, MSPH3, Sona Narula, M.D.1 and Brenda Banwell, MD, FRCPC, FAAN4, (1)Neurology, The Children’s Hospital of Philadelphia, Philadelphia, PA, (2)Neuropsychology, The Children’s Hospital of Philadelphia, Philadelphia, PA, (3)Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA, (4)The Children’s Hospital of Philadelphia, Philadelphia, PA

Tymon Krzywinski, BA, Washington University in St. Louis, Saint Louis, MO and Salim Chahin, MD, MSCE, Department of Neurology, Washington University in St. Louis, St. Louis, MO

Alexander Burnham, MS, CCC-SLP, MSCS, Communication Sciences and Disorders, Emerson College, Boston, MA

Finn Boesen, MD1, Michael Norgaard, MSc1, Anders G Skjerbaek, MRSc1, Thor Petersen, DMSc2, Peter V Rasmussen, Phd3 and Philipp Trénel, Phd4, (1)The Danish MS Hospitals, Haslev and Ry, Denmark, (2)University of Southern Denmark, Odense, Denmark, (3)Aarhus University Hospital, Aarhus, Denmark, (4)Danish Technological Institute, Aarhus, Denmark

Laura A Swink, PhD, OTR/L1,2,3, Wesley Thornton, DPT2, Kathryn A Nearing, PhD, MA1,2, Mark M Manago, PT, PhD1,2,4 and University of Colorado, (1)Eastern Colorado Geriatric Research Education and Clinical Center (GRECC), Veterans Administration, Aurora, CO, (2)Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, (3)Research, Veterans Administration, Aurora, CO, (4)Department of Neurology, University of Colorado School of Medicine, Aurora, CO

Afolasade Fakolade, PhD1, Zain Awadia, MSc2, Odessa J. McKenna, MSc3, Katherine L. Cardwell, BHSc4, Taylor Hume, BHSc4, Julia Ludgate, BHSc5, Mark S Freedman, MSc, MD6, Marcia Finlayson, PhD1, Amy Latimer-Cheung, PhD7 and Lara A. Pilutti, PhD8, (1)School of Rehabilitation Therapy, Queen’s University, Kingston, ON, Canada, (2)Faculty of Health Sciences, McMaster University, Ottawa, ON, Canada, (3)Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada, (4)Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, ON, Canada, (5)Faculty of Health Sciences, University of Ottawa, Ottawa, ON, Canada, (6)Department of Medicine and the Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada, (7)School of Kinesiology and Health Studies, Queen’s University, Kingston, ON, Canada, (8)Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada

Marcia Finlayson, PhD, Niloufar Malakouti, MSc, Martina Franz, MSc, Dorothy Kessler, PhD and Afolasade Fakolade, PhD, School of Rehabilitation Therapy, Queen’s University, Kingston, ON, Canada

Brenda Jeng, PhD, Noah G. DuBose, MS, Trevor B. Martin, BS, Petra Silic, BS, Victoria A. Flores, PhD, Peixuan Zheng, PhD and Robert W. Motl, PhD, Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL

Brant J. Oliver, PhD, MS, MPH, APRN-BC, Community of Family and Medicine, Dartmouth Health, Lebanon, NH, Nivethitha Manohar, MPH, Paul L. Foster School of Medicine, Texas Tech University, Al Paso, TX, Jackson Cabot, NA, University of New Hampshire, Durham, NH, Ann Cabot, DO, Multidisciplinary Multiple Sclerosis Clinic at Concord Hospital, Concord, NH and Jeanne Ann Whittington, NA, Multiple Sclerosis Specialty Care Program, Concord Hospital, Concord, NH

Lita P Buttolph, PhD, DSOM1, Jamie Villanueva, DAOM2, Heena R Manglani, PhD3,4, Tanya Snyder, BS1, Lindsey Wooliscroft, MD, MCR5,6, Gloria Y Yeh, MD, MPH4,7, Ryan Bradley, ND, MPH1 and Heather Zwickey, PhD1, (1)Helfgott Research Institute, National University of Natural Medicine, Portland, OR, (2)School of Nursing, University of Washington, Seattle, WA, (3)Center for Health Outcomes and Interdisciplinary Research, Department of Psychiatry, Massachusetts General Hospital, Boston, MA, (4)Osher Center for Integrative Medicine, Harvard Medical School and Brigham and Women’s Hospital, Boston, MA, (5)MS Center of Excellence, VA Portland Health Care System, Portland, OR, (6)Department of Neurology, Oregon Health & Science University, Portland, OR, (7)Division of General Medicine, Beth Deaconess Medical Center, Harvard Medical School, Boston, MA

Tyler J. Titcomb, PhD, RDN1, Max Sherwood, BS1, Mary Ehlinger, BS1, Solange M. Saxby, PhD, RDN1, Farnoosh Shemirani, PhD1, Patrick Ten Eyck, PhD2, Linda G. Snetselaar, PhD, RDN3 and Terry L. Wahls, MD1, (1)Internal Medicine, University of Iowa, Iowa City, IA, (2)Institute for Clinical and Translational Science, University of Iowa, Iowa City, IA, (3)Epidemiology, University of Iowa, Iowa City, IA

Solange M. Saxby, PhD, RDN1, Tyler J. Titcomb, PhD, RDN1, Farnoosh Shemirani, PhD1, Mary Ehlinger, BS1, Lisa Brooks, MA, RDN1, Linda G. Snetselaar, PhD, RDN2 and Terry L. Wahls, MD1, (1)Internal Medicine, University of Iowa, Iowa City, IA, (2)Epidemiology, University of Iowa, Iowa City, IA

Alexandra C Simpson, MD, MA and Scott D Newsome, DO, MSCS, Neurology, Johns Hopkins University School of Medicine, Baltimore, MD

Andreas Meier, MD, Clinical Development, Vigil Neuroscience, Watertown, MA, Leslie Leahy, PhD, Boston, MA, Cynthia Cassandro, BS, RN, Patient Engagement, Vigil Neuroscience, Watertown, MA and Spyros Papapetropoulos, MD, PhD, Clinical Development, Vigil Neuroscience (Former Employee), Watertown, MA

Cecelia A Barry, B.A., University of Illinois College of Medicine, Chicago, IL, Evan Jameyfield, M.D., The University of Illinois at Chicago Department of Neurology and Rehabilitation, University of Illinois Hospital & Health Sciences System, Chicago, IL and Jeffrey Loeb, M.D., Ph.D, Department of Neurology and Rehabilitation, University of Illinois at Chicago, Chicago, IL

Hesham Abboud, MD, PhD1, Brian Steingo, MD2, Diana Vargas, MD3, Julie J Patel, PharmD, BCACP3,4, Nancy Nealon, MD5, Mary Alissa Willis, MD6, Yang Mao-Draayer, MD, PhD7, Dmitry Khaitov, MD8, Jose Avila Ornelas, MD9, Adnan Subei, DO10, Clifford Reed, MD11, Lisa Ferayorni, MD12, Xavier Laucirica, MD12 and Shervin Gholizadeh, PhD12, (1)Multiple Sclerosis and Neuroimmunology Program, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, (2)Infinity Clinical Research, Sunrise, FL, (3)Department of Neurology, Emory University School of Medicine, Atlanta, GA, (4)Department of Pharmacy, Emory University Hospital Midtown, Atlanta, GA, (5)Department of Neurology, Weill Cornell Medicine, New York, NY, (6)Department of Neurology, University of Mississippi Medical Center, Jackson, MS, (7)Department of Neurology, University of Michigan School of Medicine, Ann Arbor, MI, (8)Lehigh Valley Health Network, Allentown, PA, (9)HIMA Caguas Multiple Sclerosis Center, Caguas, Puerto Rico, (10)Department of Neurology, Memorial Healthcare System, Hollywood, FL, (11)Department of Neurology, Reading Hospital, West Reading, PA, (12)Genentech, Inc., South San Francisco, CA

Mirla Avila, MD, Neurology, Texas Tech University Health Sciences Center, Lubbock, TX, Mirla Nicole Martinez, student, Texas Tech, Lubbock, TX and Texas Tech

Petra Brayo, MD1, Amy Safadi, MD1, In Guk (Josh) Kang, BS2, Rebecca Kumar, MD3, Bethany Schreiber, NP1 and Carlo Tornatore, MD1, (1)Department of Neurology, MedStar Georgetown University Hospital, Washington, DC, (2)Georgetown University School of Medicine, Washington, DC, (3)Department of Infectious Diseases, MedStar Georgetown University Hospital, Washigton, DC