Anissa Desmoulin, Dimitri Kornblum, Marie-Christine Jaffar-Bandjee, Etienne Frumence, Aurélie Foucher, Patrice Poubeau, Johan Benhard, Patrick Gérardin, Emilie Mosnier
Chikungunya virus infection is considered to confer prolonged immunity. During the 2024-2025 outbreak in Reunion Island, we identified a confirmed and a probable reinfection in patients with systemic lupus erythematosus. These findings challenge this paradigm, underly a complex pathophysiology, and suggest that reinfection may occur, particularly in specific populations.