• Harvard Medical School, Boston, Massachusetts – MD, magna cum laude 
  • Brigham and Women’s Hospital, Boston, Massachusetts – Residency in Internal Medicine 
  • Massachusetts General/Brigham and Women’s Hospital Combined Program – Fellowship in Infectious Disease

Professional Activities

Dr. Eric Johannsen is a faculty member in the Division of Infectious Disease within the Department of Medicine and holds a joint appointment in the Department of Oncology/McArdle Laboratory for Cancer Research. He is an internationally recognized expert on Epstein-Barr virus (EBV) associated diseases. Dr. Johannsen leads an NIH funded laboratory focusing on the molecular biology of EBV, mentoring undergraduate, graduate, and post-doctoral researchers. He is interested in computational biology and developed a bioinformatics course for students of the biological sciences. 

Clinical Specialties

Dr. Johannsen’s clinical focus is on general infectious diseases and infectious diseases in immunocompromised patients. 

Research Interests

View Dr. Johannsen's publications on NCBI MyBibliography 

Dr. Johannsen's research interests include understanding the mechanisms by which EBV nuclear proteins allow the virus to establish life-long infection and contribute to human disease. His accomplishments include characterizing the protein composition of the EBV virion, publication of the first EBV protein-protein interactome, discovery of EBV LF2 as an inhibitor of viral replication, and elucidating the mechanisms by which a viral pre-initiation complex (vPIC) mediates late gene expression. He is a member of the McArdle Laboratory Viral Oncology Program Project, serving as a co-leader on two projects and director of the virus production core.