Professor Hung has published more than 370 international peer reviewed original articles, including research articles in the Lancet, Nature, the Lancet Infectious Diseases and the Clinical Infectious Diseases. His research interest includes influenza, SARS-CoV-2 and other respiratory virus antiviral treatment and vaccinology. He has pioneered the use of the triple combination of interferon beta-1b, lopinavir/ ritonavir and ribavirin in the treatment of hospitalized COVID-19 patients, resulting in significantly faster clinical alleviation and viral load suppression. He and his team also pioneered the application of topical imiquimod before intradermal influenza vaccination, which results in protection against heterologous non-vaccine and antigenically drifted viruses. He was also the first to prove convalescent plasma and H-IVIG reduced mortality in patients with severe influenza infection in prospective clinical trials. He is ranked as HKU Scholars in the world top 1% in 2013, 2018-2023 (H-index 70) and most highly cited researcher in 2023 by the Clarivate. He is the world-leading expert in the field of antiviral and vaccinology for influenza and COVID-19 infection. He is currently Associate Editor of the two medical journals: Vaccine; Diagnostics. As a clinician scientist, Professor Hung believes in innovation, team-work and clinical application of translational research in tackling threats from emerging infectious diseases.