The surface of viruses includes many copies of one type of protein that binds, or adsorbs, specifically to multiple copies of a receptor protein on a host cell. This interaction determines the host range of a virus and begins the infection process (Figure 6-15).
Civil rights leader Andrew Young, left, and others on the balcony of the Lorraine Motel point in the direction where gunshots came from after the assassination of civil rights leader Martin Luther King Jr. on April 4, 1968.
November 2, 1963 â During a coup, South Vietnamese President Ngo Dinh Diem is executed. August 2 and 4, 1964 - North Vietnamese attack two U.S. destroyers in international waters, which becomes known as the Gulf of Tonkin Incident. August 7, 1964 - The U.S. Congress passes the Gulf of Tonkin Resolution. March 2, 1965 â The U.S. begins bombing campaign of North Vietnam-Operation Rolling Thunder. March 8, 1965 - The first U.S. combat troops arrive in Vietnam.