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Hepatitis A is an infectious disease of the liver caused by Hepatovirus A (HAV); [7] it is a type of viral hepatitis. [8] Many cases have few or no symptoms, especially in the young. [ 1 ] The time between infection and symptoms, in those who develop them, is two–six weeks. [ 2 ]
Hepatitis B is mainly sexually transmitted, but may also be passed from mother to baby during pregnancy or childbirth and spread through infected blood. [3] Hepatitis C is commonly spread through infected blood such as may occur during needle sharing by intravenous drug users. [3] Hepatitis D can only infect people already infected with ...
Hepatitis D is caused by the hepatitis D virus (HDV), or hepatitis delta virus; it belongs to the genus Deltavirus. HDV is similar to a satellite virus as it can only propagate in the presence of the hepatitis B virus, depending on the helper function of HBV for its replication and expression. It has no independent life cycle, but can survive ...
Hepatitis A vaccine is a vaccine that prevents hepatitis A. [2] [3] It is effective in around 95% of cases and lasts for at least twenty years and possibly a person's entire life. [4] If given, two doses are recommended beginning after the age of one. [2] It is given by injection into a muscle. [2]
The liver in disease: with special reference to aspiration liver biopsy Dame Sheila Patricia Violet Sherlock (31 March 1918 – 30 December 2001) was a British physician and medical educator who is considered the major 20th-century contributor to the field of hepatology (the study of the liver).
The first human liver transplant was performed in 1963 by Dr. Thomas E. Starzl on a three-year-old male afflicted with biliary atresia after perfecting the technique on canine livers. [ 9 ] [ 10 ] Baruch S. Blumberg discovered hepatitis B virus in 1966 and developed the first vaccine against it 1969.
Liver transplantation is the standard of care in people presenting with fulminant liver failure or those with the progression of disease despite multiple lines of therapy. [33] [34] [35] Many patients, once started on long-term immunosuppressive therapy, will remain on that treatment for life.
Hilleman was born on a farm near the high plains town of Miles City, Montana.His parents were Anna (Uelsmann) and Gustav Hillemann, and he was their eighth child. [20] His twin sister died on the day the twins were born, and his mother died two days later.