Willy Rozenbaum is a French

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 physician

Physician

A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...

.

A co-discoverer of the human immunodeficiency virus (HIV) with Jean-Claude Chermann

Jean-Claude Chermann

Jean-Claude Chermann is a French virologist who played a major role in the research team which, by 1983, headed by Luc Montagnier, had discovered the causative virus. It was named lymphadenopathy-associated virus, or LAV...

 of Luc Montagnier

Luc Montagnier

Luc Antoine Montagnier is a French virologist and joint recipient with Françoise Barré-Sinoussi and Harald zur Hausen of the 2008 Nobel Prize in Physiology or Medicine, for his discovery of the human immunodeficiency virus...

's team, he has since held the chair of France's "conseil national du SIDA" (National Council on AIDS

AIDS

Acquired immune deficiency syndrome or acquired immunodeficiency syndrome is a disease of the human immune system caused by the human immunodeficiency virus...

) and before that had since 1989 practiced in the infectious and tropical diseases service at l'hôpital Tenon and been professor of infectious and tropical diseases at l'hôpital Saint-Antoine in Paris

Paris

Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

.