"Today is a verysad day for the industry because Merck's vaccine had shown an ability to turn on the immune system, which gave many people optimism it would work, " said Sarah Alexander, from the HIV Vaccine Trials Network.
Andy Heath, the chairman of UK Music and director of the record company Beggars Group, told today presenter John Humphrys that "it's veryverysad to see HMV go into administration".