Prof. Dr. Steven Callens is an internist and infectious diseases specialist heading the Department of General Internal Medicine & Infectious Diseases at UZ Gent and serving as president of the Belgian Society of Internal Medicine. He specializes in diagnosing fever and inflammation of unknown origin, working with the Programme for Undefined Diseases and Primary Immunodeficiency Syndrome.
His career began in Kenya before specializing in internal medicine and infectious diseases, with research focusing on HIV treatment in the Democratic Republic of Congo. His expertise includes tuberculosis and import infectious diseases. He actively teaches in various academic settings and has advised governmental agencies on responses to emerging threats like H1N1, Ebola, and COVID-19, while maintaining a strong commitment to patient-centered care.