Dr. Plotkin is an award-winning expert within the field of infectious disease who helped develop the rubella vaccine. He is currently Emeritus Professor at the University Pennsylvania and editor of the textbook, Vaccines, 6th Edition.

Edward T. Ryan, MD is Director of Tropical & Geographic Medicine Center, Global Infectious Diseases, and Travelers’ Advice and Immunization Center at Massachusetts General Hospital; and Associate Professor of Medicine at Harvard Medical School; and Professor of Immunology and Infectious Diseases at Harvard T.H. Chan School of Public Health. He is a co-author of MORE

Dr. Volberding is the Founder and Chair of the Board of the International AIDS Society, USA and Vice Chair of the Department of Medicine at the University of California, San Francisco. He is an editor of the text, Sande's HIV/AIDS Medicine.