40 years ago, French researchers discovered the AIDS virus. Their discovery was published in the journal Science on May 20, 1983.

This was one of the first steps in the fight against a deadly epidemic, which has so far claimed more than 40 million lives. Professors Françoise Barré-Sinoussi and Luc Montagnier were awarded the Nobel Prize in Medicine in 2008 for this discovery."Aging with HIV, we didn't even imagine it," says Gérard Pele Dedieu, of Les petits bonheurs.