A picture taken on December 22, 2020 shows medical devices displayed in "la salle des souvenirs scientifiques" (Scientific Souvenir Room) of the French scientist Louis Pasteur at the Pasteur museum, located in the Institut Pasteur in Paris. - Pasteur lived at the Institut Pasteur the 7 last years of his life, from 1888 to 1895. (Photo by STEPHANE DE SAKUTIN / AFP)