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.
What is hepatitis B? Hepatitis B is a contagious liver disease caused by the hepatitis B virus. It can cause either acute or chronic illness. Acute hepatitis B is a newly acquired infection that causes illness within six months or less of exposure to the hepatitis B virus.Chronic hepatitis B results from the hepatitis B virus remaining in the body for six months or more.eath from chronic liver disease or liver cancer occurs in 15-25% of chronically infected people. How lon g is a person able to spread hepatitis B? Hepatitis B is present before symptoms appear and while symptoms are present. Persons with the hepatitis B virus in their blood can spread hepatitis B to others.