Following a 2022 ruling by the disciplinary chamber of the Order of Physicians of Île-de-France, Perronne told Sud Radio , . The court ruled in his favor, acknowledging his legitimacy to express dissenting views on public health as an internationally recognized expert.

Former vice-president of the WHO’s European Advisory Group of Experts on Immunization (SAGE).

Before becoming a controversial figure, Professor Perronne held significant institutional roles:

Professor Christian Perronne, a prominent French specialist in infectious and tropical diseases, has used the phrase (I am very...) in several high-profile contexts to express his stance on medical controversies and professional legal battles . 1. "I am very proud to have been a conspiracy theorist"