noun, plural elegies. 1. a mournful, melancholy, or plaintive poem, especially a funeral song or a lament for the dead. 2. a poem written in elegiac meter. 3. a sad or mournful musical composition. Origin of elegy.
Hepatitis D virus (HDV) is an RNA virus that is structurally unrelated to hepatitis A (HAV), hepatitis B (HBV), or hepatitis C virus (HCV). It was discovered in 1977. HDV causes a unique infection that requires the assistance of viral particles from HBV to replicate and infect other hepatocytes.Its clinical course is varied and ranges from acute, self-limited infection to acute, fulminant liver failure.
HIV was first isolated in France in 1983 by FranÃ§oise BarrÃ©-Sinoussi in the laboratory of Luc Montaignier as lymphadenopathy-associated virus (LAV), but strong evidence that it was the AIDS virus did not appear until 1984, when four papers were published in one issue of Science by Robert Gallo and colleagues, who designated their isolate HTLV-III. The virus was also isolated in San Francisco in 1984 by Jay Levy, who published his findings a few months later in 1984 and named his isolate ...