Mario Rizzetto (born 4 June 1945) is an Italian virologist who in 1977 first reported the Hepatitis D virus as a nuclear antigen in patients infected with HBV who had severe liver disease.[1]

Mario Rizzetto
Born (1945-06-04) 4 June 1945 (age 74)
Alma materUniversity of Padua
Known forHepatitis D
AwardsKing Faisal International Prize (1985)
Robert Koch Prize (1987)
William Beaumont Prize (1988)
Hans Popper Award (1992)
Scientific career

He graduated in Medicine and Surgery at the University of Padua in 1969.[2] He was awarded the King Faisal International Prize in Medicine in 1985, the Robert Koch Prize in 1987, the William Beaumont Prize of the American Gastroenterological Association in 1988,[3] and the Hans Popper Award in 1992.


  1. ^ Rizzetto, M; Canese MG; Arico S; Criello O; Trepo C; Bonino F; Verme G (1977). "Immunofluorescence detection of new antigen-antibody system (delta/anti-delta) associated to hepatitis B virus in liver and in serum of HBsAg carriers". Gut. 18 (12): 997–1003. doi:10.1136/gut.18.12.997. PMC 1411847. PMID 75123.
  2. ^ "Professor Mario Rizzetto, MD" (PDF). Retrieved 12 September 2016.
  3. ^ "William Beaumont Prize". American Gastroenterological Association. Retrieved 4 October 2016.