12148 David Baltimore/Carole Heilman: Wie nahe ist ein HIV-Impfstoff? Spektrum 1998/10, 36-42. 11426 Barry Bloom: The highest attainable standard - ethical issues in Aids vaccines. 9 January 1998, 186-188. 13199 Jon Cohen: AIDS research head to retire from NIH. Science 7 April 2000. Neal Nathanson, 73, plans now to work in the AIDS vaccine area. B. Haynes: Scientific and social issues of human immunodeficiency virus vaccine development. Science 260 (1993), 1279-1286.