Definition of elegy for English Language Learners. : a sad poem or song : a poem or song that expresses sorrow for someone who is dead.
Hepatitis B was first discovered in 1963 by Dr. Baruch Blumberg and colleagues, who identified a protein (the âAustralia antigenâ that reacted to antibodies from patients with hemophilia and leukemia.
In the early 1970s, the cause of infectious hepatitis was found and named the Hepatitis A virus (HAV). In 1989 hepatitis C virus (HCV) was isolated. Unfortunately, there is no vaccine for hepatitis C, but in 80% of cases, carriers who complete a treatment course can be cured.In 1990 hepatitis E virus (HEV) and in 1995, Hepatitis G virus (HGV), were identified.he breakthrough understanding of hepatitis came in 1963 when Dr Baruch Blumberg discovered an antigen that detected the presence of hepatitis B (HBV) in blood samples. At the time, Dr Blumberg was actually researching the genetics of disease susceptibility.