Announcement of the Nobel Prize in Physiology or Medicine by Professor Hans Jörnvall, Secretary of the Nobel Committee for Physiology or Medicine, on 8 October 2007. Presentation of the prize-awarded work by Professor Christer Betsholtz.

Following the announcement, Professor Göran K. Hansson told senior editor Simon Frantz why the 2007 Nobel Prize in Physiology or Medicine was awarded to the pioneers of gene targetting.