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.
Hepatitis B infection is caused by the hepatitis B virus (HBV).You can catch hepatitis B through contact with the blood or body fluids (semen, vaginal fluids, and saliva) of a person who has the virus.