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protease inhibitor

(Encyclopedia)protease inhibitor prōˈtē-āsˌ [key], any of a class of drugs that interfere with replication of the AIDS virus (HIV), by blocking an enzyme (protease) necessary in the late stages of its reproduc...

Nkoli, Simon Tseko

(Encyclopedia)Nkoli, Simon 1957–1998, anti-apartheid and LGBTQ rights activist. Born in Soweto, Nkoli (sometimes referred to as Nkodi) was an influential South Afri...

blood substitute

(Encyclopedia)blood substitute, substance that mimics the function of blood. Blood substitutes typically concentrate only on reproducing the function of hemoglobin, the molecule that carries oxygen through the body...

public health

(Encyclopedia)public health, field of medicine and hygiene dealing with the prevention of disease and the promotion of health by government agencies. In the United States, public health authorities are engaged in m...

Mogae, Festus Gontebanye

(Encyclopedia)Mogae, Festus Gontebanye 1939–, Botswanan political leader, president of Botswana (1998–2008), b. Serowe. After studying economics at Sussex and Oxford universities, he returned to Botswana, where...

Johnson, Magic

(Encyclopedia)Johnson, Magic (Earvin Johnson, Jr.), 1959–, African-American basketball player, b. Lansing, Mich. After winning the national championship with Michigan State Univ. (1979), he joined the Los Angeles...

Mbeki, Thabo Mvuyelwa

(Encyclopedia)Mbeki, Thabo Mvuyelwa täˈbō mvo͝oyĕlˈə mbĕkˈē [key], 1942–, South African political leader. Mbeki was born into a politically active family; his father, Govan Mbeki, an official with the A...

orphan drug

(Encyclopedia)orphan drug, drug developed under the U.S. Orphan Drug Act (1983) to treat a disease that affects fewer than 200,000 people in the United States. The orphan drug law offers tax breaks and a seven-year...

Mapplethorpe, Robert

(Encyclopedia)Mapplethorpe, Robert māˈpəlthôrpˌ [key], 1946–89, American photographer, b. New York City. He is known for his elegantly expressive black-and-white studies of male and female nudes, flowers, an...

Epstein-Barr virus

(Encyclopedia)Epstein-Barr virus (EBV), herpesvirus that is the major cause of infectious mononucleosis and is associated with a number of cancers, particularly lymphomas in immunosuppressed persons, including pers...