Dr. Engels is currently an Investigator at the Viral Epidemiology Branch, Division of Cancer Epidemiology and Genetics, at the National Cancer Institute in Rockville, Maryland. He is also an adjunct Associate Professor at the George Washington University School of Public Health and an adjunct Assistant Professor at Johns Hopkins Hospital. Dr. Engels serves on the editorial board for Cancer Epidemiology Biomarkers and Prevention. Additionally, he chairs the Working Group on Chronic Infections, Inflammation, and Immunity, International Lung Cancer Case-Control Study Consortium. As a physician, he is board certified in Infectious Diseases. His research interests include cancers arising in HIV-infected individuals and transplant recipients, non-Hodgkin lymphoma, and lung cancer.