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Françoise Barre-Sinoussi holds the title of Director at the Institut Pasteur. She was elected as Director in 2009 and re-elected in 2013. Barre-Sinoussi is a virologist and a professor of virology at the Institut Pasteur. She is best known for her work on HIV, the virus that causes AIDS. In 1983, Barre-Sinoussi and Luc Montagnier discovered the virus that causes AIDS.