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.
THE VIRUS. Hepatitis B is the worldâs most common liver infection. Hep B is a serious and potentially deadly liver infection. It is caused by becoming infected with the hep B virus (HBV). It can cause serious liver problems like inflammation, fibrosis, cirrhosis, and liver cancer. In the U.S., chronic (long-term) hep B affects many people.