President, Hepatitis B Foundation and Professor, Drexel University College of Medicine. Dr. Timothy Block is the Co-Founder and volunteer President of the Hepatitis B Foundation and its research affiliate, the Institute for Hepatitis and Virus Research. He has been involved in viral hepatitis research for more than 20 years and is internationally recognized for his outstanding scholarship and scientific contributions. Dr. Block is a Professor of Microbiology and Immunology, Drexel University College of Medicine, and Director of the Drexel Institute for Biotechnology and Virology Research. Dr. Block is the recipient of many awards and patents for his scientific achievements.