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Third Edition
Kenneth D. Somers, PhD
Professor Emeritus
Department of Microbiology & Molecular Cell Biology
Eastern Virginia Medical School
Norfolk, Virginia
Stephen A. Morse, MSPH, PhD
Centers for Disease Control and Prevention (retired)
IHRC, Inc., Atlanta, Georgia
Molly A. Hughes, MD, PhD
Associate Professor
Department of Medicine
Division of Infectious Diseases
University of Virginia School of Medicine
Charlottesville, Virginia