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.
2. What is Hepatitis B. Hepatitis B is caused by the hepatitis B virus, the virus is very common in Asia, China, Philippines, China, Africa and the Middle east. In Europe and North America the incidence of known carriers is about 1 in a 1000 people.epatitis B is caused by the hepatitis B virus, the virus is very common in Asia, China, Philippines, China, Africa and the Middle east.