During his career at the Pasteur Institute, he made contributions in his work involving antiviral therapy, as well as in the development of vaccines against various infectious diseases.
Alexandre Dumas | Alexandre Benois | Alexandre Guilmant | Alexandre Yersin | Pierre Charles Alexandre Louis | Alexandre Pires | Alexandre Herculano | Alexandre Dumas, fils | Alexandre Barbera-Ivanoff | Alexandre-Antonin Taché | Louis-Alexandre Taschereau | Charles-Alexandre Léon Durand Linois | Alexandre Michon | Alexandre Lenoir | Alexandre Koyré | Alexandre Calame | Alexandre-Athenase Noghès | Pierre-Alexandre Monsigny | Pierre-Alexandre Aveline | Louis Alexandre Andrault de Langeron | Henri-Alexandre Wallon | Alexandre Vinet | Alexandre Tharaud | Alexandre Silva Cleyton | Alexandre Pato's | Alexandre Pato | Alexandre Millerand | Alexandre Massura | Alexandre Marine | Alexandre Luigini |
In 1902 Delezenne became a member of the Société de biologie, in 1903 he was co-founder of the Bulletin de l'Institut Pasteur with Amédée Borrel (1867-1936), Félix Mesnil (1868-1938), Gabriel Bertrand (1867–1962), Alexandre Besredka (1870–1940) and Auguste-Charles Marie (1864-1935), and in 1910 became a professor at the Pasteur Institute.