A combination photograph shows (L-R) German Professor Harald zur Hausen, French Professor Luc Montagnier and French virologist Francoise Barre-Sinoussi. Montagnier and Barre-Sinoussi, two French scientists who discovered the AIDS virus, and Hausen, a German who found the virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine or physiology on October 6, 2008. REUTERS/Handouts. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.
REUTERS/HO