Doctor Luc Montagnier, co-discover of the Human immunodeficiency virus (HIV) and the 2008 Nobel laureate for Medicine, poses with his Grand Officier Legion of Honour after a ceremony at the Elysee Palace in Paris December 21, 2011. REUTERS/Lionel Bonaventure/Pool (FRANCE - Tags: POLITICS HEALTH) 

Doctor Luc Montagnier (R), co-discover of the Human immunodeficiency virus (HIV) and the 2008 Nobel laureate for Medicine, is awarded with the Legion of Honour by France's President Nicolas Sarkozy (L) at the Elysee Palace in Paris December 21, 2011. REUTERS/Lionel Bonaventure/Pool (FRANCE - Tags: POLITICS HEALTH) 

Doctor Luc Montagnier (R), co-discover of the Human immunodeficiency virus (HIV) and the 2008 Nobel laureate for Medicine, wait to be awarded with the Legion of Honour by France's President Nicolas Sarkozy (L) at the Elysee Palace in Paris December 21, 2011. REUTERS/Lionel Bonaventure/Pool (FRANCE - Tags: POLITICS HEALTH) 

Doctor Luc Montagnier (R), co-discover of the Human immunodeficiency virus (HIV) and the 2008 Nobel laureate for Medicine, is awarded with the Legion of Honour by France's President Nicolas Sarkozy (L) at the Elysee Palace in Paris December 21, 2011. REUTERS/Lionel Bonaventure/Pool (FRANCE - Tags: POLITICS HEALTH) 

Dr. Robert Gallo (R) and Dr. Luc Montagnier, co-discoverers of the Human Immunodeficiency Virus (HIV), arrive for a news conference at the National Press Club in Washington May 8, 2009. Gallo and Montagnier on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES SCI TECH HEALTH) 

Dr. Robert Gallo (L) and Dr. Luc Montagnier, co-discoverers of the Human Immunodeficiency Virus (HIV), arrive for a news conference at the National Press Club in Washington May 8, 2009. Gallo and Montagnier on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES SCI TECH HEALTH) 

Dr. Robert Gallo (L) and Dr. Luc Montagnier, co-discoverers of the Human Immunodeficiency Virus (HIV), arrive for a news conference at the National Press Club in Washington May 8, 2009. Gallo and Montagnier on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES SCI TECH HEALTH) 

Dr. Robert Gallo, co-discover of the Human Immunodeficiency Virus (HIV), arrives for a news conference at the National Press Club in Washington May 8, 2009. Gallo and Dr. Luc Montagnier, co-discoverers of HIV, on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES SCI TECH HEALTH) 

Dr. Robert Gallo (R) and Dr. Luc Montagnier, co-discoverers of the Human Immunodeficiency Virus (HIV), arrive for a news conference at the National Press Club in Washington May 8, 2009. Gallo and Montagnier on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES SCI TECH HEALTH) 

Dr. Robert Gallo (R) and Dr. Luc Montagnier, co-discovers of the Human immunodeficiency virus (HIV), hold a news conference at the National Press Club in Washington May 8, 2009. Gallo and Montagnier on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES SCI TECH HEALTH) 

Dr. Luc Montagnier, co-discover of the Human immunodeficiency virus (HIV), arrives for a news conference at the National Press Club in Washington May 8, 2009. Montagnier and Dr. Robert Gallo, co-discover of HIV, on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES HEALTH SCI TECH HEADSHOT) 

Dr. Robert Gallo (L) and Dr. Luc Montagnier, co-discovers of the Human immunodeficiency virus (HIV), arrive for a news conference at the National Press Club in Washington May 8, 2009. Gallo and Montagnier on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES HEALTH SCI TECH) 

Dr. Robert Gallo, co-discover of the Human immunodeficiency virus (HIV), arrives for a news conference at the National Press Club in Washington May 8, 2009. Gallo and Dr. Luc Montagnier, co-discover of HIV, on Friday called for a renewed intensity in HIV/AIDS research worldwide. REUTERS/Yuri Gripas (UNITED STATES HEALTH SCI TECH) 

Francoise Barre-Sinoussi (L) and Luc Montagnier of France attend the 2008 Nobel Prize ceremony at the Concert Hall in Stockholm December 10, 2008. The medicine prize was given to three researchers, with Barre-Sinoussi and Luc Montagnier of France awarded one half for their discovery of the "human immunodeficiency virus" and Harold zur Hausen of Germany awarded one half for his discovery of "human papilloma viruses causing cervical cancer". REUTERS/Bob Strong (SWEDEN) 

Luc Montagnier of France reacts receiving the 2008 Nobel Prize in Medicine at the Concert Hall in Stockholm December 10, 2008. The medicine prize was given to three researchers, with Montagnier and Francoise Barre-Sinoussi of France awarded one half for their discovery of the "human immunodeficiency virus" and Harold zur Hausen of Germany awarded one half for his discovery of "human papilloma viruses causing cervical cancer". REUTERS/Bob Strong (SWEDEN) 

Luc Montagnier of France receives the 2008 Nobel Prize in Medicine from Sweden's King Carl XVI Gustaf (R) at the Concert Hall in Stockholm December 10, 2008. The medicine prize was given to three researchers, with Montagnier and Francoise Barre-Sinoussi of France awarded one half for their discovery of the "human immunodeficiency virus" and Harold zur Hausen of Germany awarded one half for his discovery of "human papilloma viruses causing cervical cancer". REUTERS/Bob Strong (SWEDEN) 

Francoise Barre-Sinoussi of France reacts after receiving the 2008 Nobel Prize in Medicine at the Concert Hall in Stockholm December 10, 2008. The medicine prize was given to three researchers, with Barre-Sinoussi and Luc Montagnier of France awarded one half for their discovery of the "human immunodeficiency virus" and Harold zur Hausen of Germany awarded one half for his discovery of "human papilloma viruses causing cervical cancer". REUTERS/Bob Strong (SWEDEN) 

Francoise Barre-Sinoussi of France receives the 2008 Nobel Prize in Medicine from Sweden's King Carl XVI Gustaf (R) at the Concert Hall in Stockholm December 10, 2008. The medicine prize was given to three researchers, with Barre-Sinoussi and Luc Montagnier of France awarded one half for their discovery of the "human immunodeficiency virus" and Harold zur Hausen of Germany awarded one half for his discovery of "human papilloma viruses causing cervical cancer". REUTERS/Bob Strong (SWEDEN) 

Harald zur Hausen of Germany reacts after receiving the 2008 Nobel Prize in Medicine at the Concert Hall in Stockholm December 10, 2008. The medicine prize was given to three researchers, with zur Hausen awarded one half for his discovery of "human papilloma viruses causing cervical cancer" and one half shared by Francoise Barre-Sinoussi and Luc Montagnier of France for their discovery of the "human immunodeficiency virus". REUTERS/Bob Strong (SWEDEN) 

Harald zur Hausen of Germany receives the 2008 Nobel Prize in Medicine from Sweden's King Carl XVI Gustaf (R) at the Concert Hall in Stockholm December 10, 2008. The medicine prize was given to three researchers, with zur Hausen awarded one half for his discovery of "human papilloma viruses causing cervical cancer" and one half shared by Francoise Barre-Sinoussi and Luc Montagnier of France for their discovery of the "human immunodeficiency virus". REUTERS/Bob Strong (SWEDEN) 

Harald zur Hausen of Germany reacts after receiving the 2008 Nobel Prize in Medicine at the Concert Hall in Stockholm December 10, 2008. The medicine prize was given to three researchers, with zur Hausen awarded one half for his discovery of "human papilloma viruses causing cervical cancer" and one half shared by Francoise Barre-Sinoussi and Luc Montagnier of France for their discovery of the "human immunodeficiency virus". REUTERS/Bob Strong (SWEDEN) 

French scientist Francoise Barre-Sinoussi, who shares the 2008 Nobel Prize for medicine or physiology with compatriot Luc Montagnier for their discovery of the virus that causes AIDS, speaks during a news conference in Stockholm December 6, 2008. The Nobel awards will be presented at a ceremony in Stockholm on December 10. REUTERS/Bob Strong (SWEDEN) 

Winners of the 2008 Nobel Prize for medicine or physiology, French scientists Luc Montagnier (L-R) and Francoise Barre-Sinoussi for their discovery of the virus that causes AIDS, and German scientist Harald zur Hausen for his work into the cause of cervical cancer, pose before a news conference in Stockholm December 6, 2008. The Nobel awards will be presented at a ceremony in Stockholm on December 10. REUTERS/Bob Strong (SWEDEN) 

French scientists Francoise Barre-Sinoussi (L) and Luc Montagnier pose for the media during a news conference at UNESCO headquarters in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French virologist Francoise Barre-Sinoussi attends a news conference at UNESCO headquarters in Paris, October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French scientist Luc Montagnier speaks at a news conference at UNESCO's headquarters in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French scientists Luc Montagnier (L) and Francoise Barre-Sinoussi walk in the courtyard at the Elysee Palace after a meeting with France's President Nicolas Sarkozy in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French scientists Luc Montagnier (L) and Francoise Barre-Sinoussi walk in the courtyard at the Elysee Palace after a meeting with France's President Nicolas Sarkozy in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French scientists Francoise Barre-Sinoussi (L) and Luc Montagnier meet with France's President Nicolas Sarkozy (R) at the Elysee Palace in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Michel Euler (FRANCE) 

French scientists Francoise Barre-Sinoussi (L) and Luc Montagnier speak to the media in the courtyard at the Elysee Palace after a meeting with France's President Nicolas Sarkozy in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French scientists Francoise Barre-Sinoussi (R) and Luc Montagnier descend the steps at the Elysee Palace after a meeting with France's President Nicolas Sarkozy in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French scientists Francoise Barre-Sinoussi (R) and Luc Montagnier descend the steps at the Elysee Palace after a meeting with France's President Nicolas Sarkozy in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French scientists Francoise Barre-Sinoussi (R) and Luc Montagnier shake hands in the courtyard of the Elysee Palace after a meeting with France's President Nicolas Sarkozy in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French scientists Francoise Barre-Sinoussi (L) and Luc Montagnier pose for the media during a news conference at the UNESCO's headquarters in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/Gonzalo Fuentes (FRANCE) 

French virologist Francoise Barre-Sinoussi speaks with the media before a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French virologist Francoise Barre-Sinoussi poses for the media before a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French virologist Francoise Barre-Sinoussi (R) speaks with the media before a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French virologist Francoise Barre-Sinoussi poses for the media before a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French virologist Francoise Barre-Sinoussi poses for the media before a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French virologist Francoise Barre-Sinoussi poses for the media before a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French virologist Francoise Barre-Sinoussi poses for the media before a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French virologist Francoise Barre-Sinoussi (C) arrives for a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French virologist Francoise Barre-Sinoussi (C) arrives for a news conference at the Institut Pasteur in Paris October 8, 2008. Two French scientists who discovered the AIDS virus and a German who bucked conventional wisdom to find a virus that causes cervical cancer were awarded the 2008 Nobel prize for medicine on Monday October 6, 2008. Luc Montagnier, director of the World Foundation for AIDS Research and Prevention, and Francoise Barre-Sinoussi of the Institut Pasteur won half the prize of 10 million Swedish crowns ($1.4 million) for discovering the virus that has killed 25 million people since it was identified in the 1980s. REUTERS/ Benoit Tessier (FRANCE) 

French scientist Luc Montagnier, 2008 Nobel prize winner for medicine and director of the World Foundation for AIDS Research and Prevention, attends the international conference about AIDS at the presidential palace in Abidjan October 6, 2008. REUTERS/Luc Gnago (IVORY COAST) BEST QUALITY AVAILABLE 

French scientist Luc Montagnier (R), 2008 Nobel prize winner for medicine and director of the World Foundation for AIDS Research and Prevention, shakes hands with Ivory Coast's President Laurent Gbagbo during the international conference about AIDS at the presidential palace in Abidjan October 6, 2008. REUTERS/Luc Gnago (IVORY COAST) BEST QUALITY AVAILABLE 

French scientist Luc Montagnier, 2008 Nobel prize winner for medicine and director of the World Foundation for AIDS Research and Prevention, arrives for the international conference about AIDS at the presidential palace in Abidjan October 6, 2008. REUTERS/Luc Gnago (IVORY COAST) 

French scientist Luc Montagnier (front L), 2008 Nobel prize winner for medicine and director of the World Foundation for AIDS Research and Prevention, poses next to Ivory Coast's President Laurent Gbagbo during the international conference about AIDS at the presidential palace in Abidjan October 6, 2008. REUTERS/Luc Gnago (IVORY COAST) BEST QUALITY AVAILABLE 

French scientist Luc Montagnier, 2008 Nobel prize winner for medicine and director of the World Foundation for AIDS Research and Prevention, arrives for the international conference about AIDS at the presidential palace in Abidjan October 6, 2008. REUTERS/Luc Gnago (IVORY COAST) 

French scientist Luc Montagnier, 2008 Nobel prize winner for medicine and director of the World Foundation for AIDS Research and Prevention, attends the international conference about AIDS at the presidential palace in Abidjan October 6, 2008. REUTERS/Luc Gnago (IVORY COAST) 

Professor Harald zur Hausen, joint Nobel Prize winner in Physiology or Medicine 2008, smiles during a news conference at the German cancer research center of the university in Heidelberg October 6, 2008. Germany's Harald zur Hausen and French researchers Francoise Barre-Sinoussi and Luc Montagnier were jointly awarded the 2008 Nobel Prize in Physiology or Medicine on Monday. Hausen won "for his discovery of human papilloma viruses causing cervical cancer" and Barre-Sinoussi and Montagnier "for their discovery of human immunodeficiency virus". REUTERS/Alex Grimm (GERMANY) 

Professor Harald zur Hausen joint Nobel Prize winner in Physiology or Medicine 2008, poses in front of the cancer research center of the university in Heidelberg October 6, 2008. Germany's Harald zur Hausen and French researchers Francoise Barre-Sinoussi and Luc Montagnier were jointly awarded the 2008 Nobel Prize in Physiology or Medicine on Monday. Hausen won "for his discovery of human papilloma viruses causing cervical cancer" and Barre-Sinoussi and Montagnier "for their discovery of human immunodeficiency virus". REUTERS/Alex Grimm (GERMANY) 

Professor Harald zur Hausen joint Nobel Prize winner in Physiology or Medicine 2008, gestures during a reception at the cancer research center of the university in Heidelberg October 6, 2008. Germany's Harald zur Hausen and French researchers Francoise Barre-Sinoussi and Luc Montagnier were jointly awarded the 2008 Nobel Prize in Physiology or Medicine on Monday. Hausen won "for his discovery of human papilloma viruses causing cervical cancer" and Barre-Sinoussi and Montagnier "for their discovery of human immunodeficiency virus". REUTERS/Alex Grimm (GERMANY) 

Professor Harald zur Hausen joint Nobel Prize winner in Physiology or Medicine 2008, poses in a laboratory at the cancer research center of the university in Heidelberg October 6, 2008. Germany's Harald zur Hausen and French researchers Francoise Barre-Sinoussi and Luc Montagnier were jointly awarded the 2008 Nobel Prize in Physiology or Medicine on Monday. Hausen won "for his discovery of human papilloma viruses causing cervical cancer" and Barre-Sinoussi and Montagnier "for their discovery of human immunodeficiency virus". REUTERS/Alex Grimm (GERMANY) 

Professor Harald zur Hausen joint Nobel Prize winner in Physiology or Medicine 2008, poses in a laboratory at the cancer research center of the university in Heidelberg October 6, 2008. Germany's Harald zur Hausen and French researchers Francoise Barre-Sinoussi and Luc Montagnier were jointly awarded the 2008 Nobel Prize in Physiology or Medicine on Monday. Hausen won "for his discovery of human papilloma viruses causing cervical cancer" and Barre-Sinoussi and Montagnier "for their discovery of human immunodeficiency virus". REUTERS/Alex Grimm (GERMANY) 

Professor Harald zur Hausen joint Nobel Prize winner in Physiology or Medicine 2008, poses in a laboratory at the cancer research center of the university in Heidelberg October 6, 2008. Germany's Harald zur Hausen and French researchers Francoise Barre-Sinoussi and Luc Montagnier were jointly awarded the 2008 Nobel Prize in Physiology or Medicine on Monday. Hausen won "for his discovery of human papilloma viruses causing cervical cancer" and Barre-Sinoussi and Montagnier "for their discovery of human immunodeficiency virus". REUTERS/Alex Grimm (GERMANY) 

Professor Harald zur Hausen joint Nobel Prize winner in Physiology or Medicine 2008, poses in a laboratory at the cancer research center of the university in Heidelberg October 6, 2008. Germany's Harald zur Hausen and French researchers Francoise Barre-Sinoussi and Luc Montagnier were jointly awarded the 2008 Nobel Prize in Physiology or Medicine on Monday. Hausen won "for his discovery of human papilloma viruses causing cervical cancer" and Barre-Sinoussi and Montagnier "for their discovery of human immunodeficiency virus". REUTERS/Alex Grimm (GERMANY) 

French Professor Luc Montagnier, who discovered the AIDS virus, speaks during a joint media effort by French television to help fight the spread of AIDS and public prejudice in Paris April 7, 1994. On R : French singer Line Renaud. REUTERS/Gareth Watkins (FRANCE) 

AIDS researcher Professor Luc Montagnier addresses an International AIDS summit chaired by French Health Minister Simone Veil in Paris June 17, 1994. REUTERS/Gareth Watkins (FRANCE) 

AIDS researcher Professor Luc Montagnier addresses an International AIDS summit chaired by French Health Minister Simone Veil (R) in Paris June 17, 1994. REUTERS/Gareth Watkins (FRANCE) 

From L to R, French television producer Christophe Dechavanne, Professor Luc Montagnier, singer Line Renaud, French Health Minister Philippe Douste Blazy and Frederic Mitterrand are seen at the start of the joint effort by the media to fight the spread of AIDS in Paris in this April 7, 1994 file picture. One German and two French scientists won the 2008 Nobel prize for medicine or physiology for their discoveries of two viruses that cause severe human diseases, the prize awarding institute said on Monday. The prize of 10 million Swedish crowns ($1.4 million) recognised Harald zur Hausen of Germany for his work into the cause of cervical cancer and Francoise Barre-Sinoussi and Luc Montagnier of France for their discovery of the virus that causes AIDS, Sweden's Karolinska Institute said. REUTERS/Gareth Watkins/Files (FRANCE)